PeCO-EO/natbib.sty

   1 %%\r
   2 %% This is file `natbib.sty',\r
   3 %% generated with the docstrip utility.\r
   4 %%\r
   5 %% The original source files were:\r
   6 %%\r
   7 %% natbib.dtx  (with options: `package,all')\r
   8 %% =============================================\r
   9 %% IMPORTANT NOTICE:\r
  10 %% \r
  11 %% This program can be redistributed and/or modified under the terms\r
  12 %% of the LaTeX Project Public License Distributed from CTAN\r
  13 %% archives in directory macros/latex/base/lppl.txt; either\r
  14 %% version 1 of the License, or any later version.\r
  15 %% \r
  16 %% This is a generated file.\r
  17 %% It may not be distributed without the original source file natbib.dtx.\r
  18 %% \r
  19 %% Full documentation can be obtained by LaTeXing that original file.\r
  20 %% Only a few abbreviated comments remain here to describe the usage.\r
  21 %% =============================================\r
  22 %% Copyright 1993-2010 Patrick W Daly\r
  23 %% Max-Planck-Institut f\"ur Sonnensystemforschung\r
  24 %% Max-Planck-Str. 2\r
  25 %% D-37191 Katlenburg-Lindau\r
  26 %% Germany\r
  27 %% E-mail: daly@mps.mpg.de\r
  28 \NeedsTeXFormat{LaTeX2e}[1995/06/01]\r
  29 \ProvidesPackage{natbib}\r
  30         [2010/09/13 8.31b (PWD, AO)]\r
  31 \r
  32  % This package reimplements the LaTeX \cite command to be used for various\r
  33  % citation styles, both author-year and numerical. It accepts BibTeX\r
  34  % output intended for many other packages, and therefore acts as a\r
  35  % general, all-purpose citation-style interface.\r
  36  %\r
  37  % With standard numerical .bst files, only numerical citations are\r
  38  % possible. With an author-year .bst file, both numerical and\r
  39  % author-year citations are possible.\r
  40  %\r
  41  % If author-year citations are selected, \bibitem must have one of the\r
  42  %   following forms:\r
  43  %   \bibitem[Jones et al.(1990)]{key}...\r
  44  %   \bibitem[Jones et al.(1990)Jones, Baker, and Williams]{key}...\r
  45  %   \bibitem[Jones et al., 1990]{key}...\r
  46  %   \bibitem[\protect\citeauthoryear{Jones, Baker, and Williams}{Jones\r
  47  %       et al.}{1990}]{key}...\r
  48  %   \bibitem[\protect\citeauthoryear{Jones et al.}{1990}]{key}...\r
  49  %   \bibitem[\protect\astroncite{Jones et al.}{1990}]{key}...\r
  50  %   \bibitem[\protect\citename{Jones et al., }1990]{key}...\r
  51  %   \harvarditem[Jones et al.]{Jones, Baker, and Williams}{1990}{key}...\r
  52  %\r
  53  % This is either to be made up manually, or to be generated by an\r
  54  % appropriate .bst file with BibTeX.\r
  55  %                            Author-year mode     ||   Numerical mode\r
  56  % Then, \citet{key}  ==>>  Jones et al. (1990)    ||   Jones et al. [21]\r
  57  %       \citep{key}  ==>> (Jones et al., 1990)    ||   [21]\r
  58  % Multiple citations as normal:\r
  59  % \citep{key1,key2}  ==>> (Jones et al., 1990; Smith, 1989) || [21,24]\r
  60  %                           or  (Jones et al., 1990, 1991)  || [21,24]\r
  61  %                           or  (Jones et al., 1990a,b)     || [21,24]\r
  62  % \cite{key} is the equivalent of \citet{key} in author-year mode\r
  63  %                         and  of \citep{key} in numerical mode\r
  64  % Full author lists may be forced with \citet* or \citep*, e.g.\r
  65  %       \citep*{key}      ==>> (Jones, Baker, and Williams, 1990)\r
  66  % Optional notes as:\r
  67  %   \citep[chap. 2]{key}    ==>> (Jones et al., 1990, chap. 2)\r
  68  %   \citep[e.g.,][]{key}    ==>> (e.g., Jones et al., 1990)\r
  69  %   \citep[see][pg. 34]{key}==>> (see Jones et al., 1990, pg. 34)\r
  70  %  (Note: in standard LaTeX, only one note is allowed, after the ref.\r
  71  %   Here, one note is like the standard, two make pre- and post-notes.)\r
  72  %   \citealt{key}          ==>> Jones et al. 1990\r
  73  %   \citealt*{key}         ==>> Jones, Baker, and Williams 1990\r
  74  %   \citealp{key}          ==>> Jones et al., 1990\r
  75  %   \citealp*{key}         ==>> Jones, Baker, and Williams, 1990\r
  76  % Additional citation possibilities (both author-year and numerical modes)\r
  77  %   \citeauthor{key}       ==>> Jones et al.\r
  78  %   \citeauthor*{key}      ==>> Jones, Baker, and Williams\r
  79  %   \citeyear{key}         ==>> 1990\r
  80  %   \citeyearpar{key}      ==>> (1990)\r
  81  %   \citetext{priv. comm.} ==>> (priv. comm.)\r
  82  %   \citenum{key}          ==>> 11 [non-superscripted]\r
  83  % Note: full author lists depends on whether the bib style supports them;\r
  84  %       if not, the abbreviated list is printed even when full requested.\r
  85  %\r
  86  % For names like della Robbia at the start of a sentence, use\r
  87  %   \Citet{dRob98}         ==>> Della Robbia (1998)\r
  88  %   \Citep{dRob98}         ==>> (Della Robbia, 1998)\r
  89  %   \Citeauthor{dRob98}    ==>> Della Robbia\r
  90  %\r
  91  %\r
  92  % Citation aliasing is achieved with\r
  93  %   \defcitealias{key}{text}\r
  94  %   \citetalias{key}  ==>> text\r
  95  %   \citepalias{key}  ==>> (text)\r
  96  %\r
  97  % Defining the citation mode and punctual (citation style)\r
  98  %   \setcitestyle{<comma-separated list of keywords, same\r
  99  %     as the package options>}\r
 100  % Example: \setcitestyle{square,semicolon}\r
 101  % Alternatively:\r
 102  % Use \bibpunct with 6 mandatory arguments:\r
 103  %    1. opening bracket for citation\r
 104  %    2. closing bracket\r
 105  %    3. citation separator (for multiple citations in one \cite)\r
 106  %    4. the letter n for numerical styles, s for superscripts\r
 107  %        else anything for author-year\r
 108  %    5. punctuation between authors and date\r
 109  %    6. punctuation between years (or numbers) when common authors missing\r
 110  % One optional argument is the character coming before post-notes. It\r
 111  %   appears in square braces before all other arguments. May be left off.\r
 112  % Example (and default) \bibpunct[, ]{(}{)}{;}{a}{,}{,}\r
 113  %\r
 114  % To make this automatic for a given bib style, named newbib, say, make\r
 115  % a local configuration file, natbib.cfg, with the definition\r
 116  %   \newcommand{\bibstyle@newbib}{\bibpunct...}\r
 117  % Then the \bibliographystyle{newbib} will cause \bibstyle@newbib to\r
 118  % be called on THE NEXT LATEX RUN (via the aux file).\r
 119  %\r
 120  % Such preprogrammed definitions may be invoked anywhere in the text\r
 121  %  by calling \citestyle{newbib}. This is only useful if the style specified\r
 122  %  differs from that in \bibliographystyle.\r
 123  %\r
 124  % With \citeindextrue and \citeindexfalse, one can control whether the\r
 125  % \cite commands make an automatic entry of the citation in the .idx\r
 126  % indexing file. For this, \makeindex must also be given in the preamble.\r
 127  %\r
 128  % Package Options: (for selecting punctuation)\r
 129  %   round  -  round parentheses are used (default)\r
 130  %   square -  square brackets are used   [option]\r
 131  %   curly  -  curly braces are used      {option}\r
 132  %   angle  -  angle brackets are used    <option>\r
 133  %   semicolon  -  multiple citations separated by semi-colon (default)\r
 134  %   colon  - same as semicolon, an earlier confusion\r
 135  %   comma  -  separated by comma\r
 136  %   authoryear - selects author-year citations (default)\r
 137  %   numbers-  selects numerical citations\r
 138  %   super  -  numerical citations as superscripts\r
 139  %   sort   -  sorts multiple citations according to order in ref. list\r
 140  %   sort&compress   -  like sort, but also compresses numerical citations\r
 141  %   compress - compresses without sorting\r
 142  %   longnamesfirst  -  makes first citation full author list\r
 143  %   sectionbib - puts bibliography in a \section* instead of \chapter*\r
 144  %   merge - allows the citation key to have a * prefix,\r
 145  %           signifying to merge its reference with that of the previous citation.\r
 146  %   elide - if references are merged, repeated portions of later ones may be removed.\r
 147  %   mcite - recognizes and ignores the * prefix for merging.\r
 148  % Punctuation so selected dominates over any predefined ones.\r
 149  % Package options are called as, e.g.\r
 150  %        \usepackage[square,comma]{natbib}\r
 151  % LaTeX the source file natbib.dtx to obtain more details\r
 152  % or the file natnotes.tex for a brief reference sheet.\r
 153  %-----------------------------------------------------------\r
 154 \providecommand\@ifxundefined[1]{%\r
 155  \ifx#1\@undefined\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi\r
 156 }%\r
 157 \providecommand\@ifnum[1]{%\r
 158  \ifnum#1\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi\r
 159 }%\r
 160 \providecommand\@ifx[1]{%\r
 161  \ifx#1\expandafter\@firstoftwo\else\expandafter\@secondoftwo\fi\r
 162 }%\r
 163 \providecommand\appdef[2]{%\r
 164  \toks@\expandafter{#1}\@temptokena{#2}%\r
 165  \edef#1{\the\toks@\the\@temptokena}%\r
 166 }%\r
 167 \@ifclassloaded{agu2001}{\PackageError{natbib}\r
 168   {The agu2001 class already includes natbib coding,\MessageBreak\r
 169    so you should not add it explicitly}\r
 170   {Type <Return> for now, but then later remove\MessageBreak\r
 171    the command \protect\usepackage{natbib} from the document}\r
 172   \endinput}{}\r
 173 \@ifclassloaded{agutex}{\PackageError{natbib}\r
 174   {The AGUTeX class already includes natbib coding,\MessageBreak\r
 175    so you should not add it explicitly}\r
 176   {Type <Return> for now, but then later remove\MessageBreak\r
 177    the command \protect\usepackage{natbib} from the document}\r
 178   \endinput}{}\r
 179 \@ifclassloaded{aguplus}{\PackageError{natbib}\r
 180   {The aguplus class already includes natbib coding,\MessageBreak\r
 181    so you should not add it explicitly}\r
 182   {Type <Return> for now, but then later remove\MessageBreak\r
 183    the command \protect\usepackage{natbib} from the document}\r
 184   \endinput}{}\r
 185 \@ifclassloaded{nlinproc}{\PackageError{natbib}\r
 186   {The nlinproc class already includes natbib coding,\MessageBreak\r
 187    so you should not add it explicitly}\r
 188   {Type <Return> for now, but then later remove\MessageBreak\r
 189    the command \protect\usepackage{natbib} from the document}\r
 190   \endinput}{}\r
 191 \@ifclassloaded{egs}{\PackageError{natbib}\r
 192   {The egs class already includes natbib coding,\MessageBreak\r
 193    so you should not add it explicitly}\r
 194   {Type <Return> for now, but then later remove\MessageBreak\r
 195    the command \protect\usepackage{natbib} from the document}\r
 196   \endinput}{}\r
 197 \@ifclassloaded{egu}{\PackageError{natbib}\r
 198   {The egu class already includes natbib coding,\MessageBreak\r
 199    so you should not add it explicitly}\r
 200   {Type <Return> for now, but then later remove\MessageBreak\r
 201    the command \protect\usepackage{natbib} from the document}\r
 202   \endinput}{}\r
 203  % Define citation punctuation for some author-year styles\r
 204  % One may add and delete at this point\r
 205  % Or put additions into local configuration file natbib.cfg\r
 206 \newcommand\bibstyle@chicago{\bibpunct{(}{)}{;}{a}{,}{,}}\r
 207 \newcommand\bibstyle@named{\bibpunct{[}{]}{;}{a}{,}{,}}\r
 208 \newcommand\bibstyle@agu{\bibpunct{[}{]}{;}{a}{,}{,~}}%Amer. Geophys. Union\r
 209 \newcommand\bibstyle@copernicus{\bibpunct{(}{)}{;}{a}{,}{,}}%Copernicus Publications\r
 210 \let\bibstyle@egu=\bibstyle@copernicus\r
 211 \let\bibstyle@egs=\bibstyle@copernicus\r
 212 \newcommand\bibstyle@agsm{\bibpunct{(}{)}{,}{a}{}{,}\gdef\harvardand{\&}}\r
 213 \newcommand\bibstyle@kluwer{\bibpunct{(}{)}{,}{a}{}{,}\gdef\harvardand{\&}}\r
 214 \newcommand\bibstyle@dcu{\bibpunct{(}{)}{;}{a}{;}{,}\gdef\harvardand{and}}\r
 215 \newcommand\bibstyle@aa{\bibpunct{(}{)}{;}{a}{}{,}} %Astronomy & Astrophysics\r
 216 \newcommand\bibstyle@pass{\bibpunct{(}{)}{;}{a}{,}{,}}%Planet. & Space Sci\r
 217 \newcommand\bibstyle@anngeo{\bibpunct{(}{)}{;}{a}{,}{,}}%Annales Geophysicae\r
 218 \newcommand\bibstyle@nlinproc{\bibpunct{(}{)}{;}{a}{,}{,}}%Nonlin.Proc.Geophys.\r
 219  % Define citation punctuation for some numerical styles\r
 220 \newcommand\bibstyle@cospar{\bibpunct{/}{/}{,}{n}{}{}%\r
 221      \gdef\bibnumfmt##1{##1.}}\r
 222 \newcommand\bibstyle@esa{\bibpunct{(Ref.~}{)}{,}{n}{}{}%\r
 223      \gdef\bibnumfmt##1{##1.\hspace{1em}}}\r
 224 \newcommand\bibstyle@nature{\bibpunct{}{}{,}{s}{}{\textsuperscript{,}}%\r
 225      \gdef\bibnumfmt##1{##1.}}\r
 226  % The standard LaTeX styles\r
 227 \newcommand\bibstyle@plain{\bibpunct{[}{]}{,}{n}{}{,}}\r
 228 \let\bibstyle@alpha=\bibstyle@plain\r
 229 \let\bibstyle@abbrv=\bibstyle@plain\r
 230 \let\bibstyle@unsrt=\bibstyle@plain\r
 231  % The author-year modifications of the standard styles\r
 232 \newcommand\bibstyle@plainnat{\bibpunct{[}{]}{,}{a}{,}{,}}\r
 233 \let\bibstyle@abbrvnat=\bibstyle@plainnat\r
 234 \let\bibstyle@unsrtnat=\bibstyle@plainnat\r
 235 \newif\ifNAT@numbers \NAT@numbersfalse\r
 236 \newif\ifNAT@super \NAT@superfalse\r
 237 \let\NAT@merge\z@\r
 238 \DeclareOption{numbers}{\NAT@numberstrue\r
 239    \ExecuteOptions{square,comma,nobibstyle}}\r
 240 \DeclareOption{super}{\NAT@supertrue\NAT@numberstrue\r
 241    \renewcommand\NAT@open{}\renewcommand\NAT@close{}\r
 242    \ExecuteOptions{nobibstyle}}\r
 243 \DeclareOption{authoryear}{\NAT@numbersfalse\r
 244    \ExecuteOptions{round,semicolon,bibstyle}}\r
 245 \DeclareOption{round}{%\r
 246       \renewcommand\NAT@open{(} \renewcommand\NAT@close{)}\r
 247    \ExecuteOptions{nobibstyle}}\r
 248 \DeclareOption{square}{%\r
 249       \renewcommand\NAT@open{[} \renewcommand\NAT@close{]}\r
 250    \ExecuteOptions{nobibstyle}}\r
 251 \DeclareOption{angle}{%\r
 252       \renewcommand\NAT@open{$<$} \renewcommand\NAT@close{$>$}\r
 253    \ExecuteOptions{nobibstyle}}\r
 254 \DeclareOption{curly}{%\r
 255       \renewcommand\NAT@open{\{} \renewcommand\NAT@close{\}}\r
 256    \ExecuteOptions{nobibstyle}}\r
 257 \DeclareOption{comma}{\renewcommand\NAT@sep{,}\r
 258    \ExecuteOptions{nobibstyle}}\r
 259 \DeclareOption{semicolon}{\renewcommand\NAT@sep{;}\r
 260    \ExecuteOptions{nobibstyle}}\r
 261 \DeclareOption{colon}{\ExecuteOptions{semicolon}}\r
 262 \DeclareOption{nobibstyle}{\let\bibstyle=\@gobble}\r
 263 \DeclareOption{bibstyle}{\let\bibstyle=\@citestyle}\r
 264 \newif\ifNAT@openbib \NAT@openbibfalse\r
 265 \DeclareOption{openbib}{\NAT@openbibtrue}\r
 266 \DeclareOption{sectionbib}{\def\NAT@sectionbib{on}}\r
 267 \def\NAT@sort{\z@}\r
 268 \def\NAT@cmprs{\z@}\r
 269 \DeclareOption{sort}{\def\NAT@sort{\@ne}}\r
 270 \DeclareOption{compress}{\def\NAT@cmprs{\@ne}}\r
 271 \DeclareOption{sort&compress}{\def\NAT@sort{\@ne}\def\NAT@cmprs{\@ne}}\r
 272 \DeclareOption{mcite}{\let\NAT@merge\@ne}\r
 273 \DeclareOption{merge}{\@ifnum{\NAT@merge<\tw@}{\let\NAT@merge\tw@}{}}\r
 274 \DeclareOption{elide}{\@ifnum{\NAT@merge<\thr@@}{\let\NAT@merge\thr@@}{}}\r
 275 \@ifpackageloaded{cite}{\PackageWarningNoLine{natbib}\r
 276   {The `cite' package should not be used\MessageBreak\r
 277    with natbib. Use option `sort' instead}\ExecuteOptions{sort}}{}\r
 278 \@ifpackageloaded{mcite}{\PackageWarningNoLine{natbib}\r
 279   {The `mcite' package should not be used\MessageBreak\r
 280    with natbib. Use option `merge' instead}\ExecuteOptions{merge}}{}\r
 281 \@ifpackageloaded{citeref}{\PackageError{natbib}\r
 282   {The `citeref' package must be loaded after natbib}%\r
 283   {Move \protect\usepackage{citeref} to after \string\usepackage{natbib}}}{}\r
 284 \newif\ifNAT@longnames\NAT@longnamesfalse\r
 285 \DeclareOption{longnamesfirst}{\NAT@longnamestrue}\r
 286 \DeclareOption{nonamebreak}{\def\NAT@nmfmt#1{\mbox{\NAT@up#1}}}\r
 287 \def\NAT@nmfmt#1{{\NAT@up#1}}\r
 288 \renewcommand\bibstyle[1]{\csname bibstyle@#1\endcsname}\r
 289 \AtBeginDocument{\global\let\bibstyle=\@gobble}\r
 290 \let\@citestyle\bibstyle\r
 291 \newcommand\citestyle[1]{\@citestyle{#1}\let\bibstyle\@gobble}\r
 292 \newcommand\bibpunct[7][, ]%\r
 293   {\gdef\NAT@open{#2}\gdef\NAT@close{#3}\gdef\r
 294    \NAT@sep{#4}\global\NAT@numbersfalse\r
 295      \ifx #5n\global\NAT@numberstrue\global\NAT@superfalse\r
 296    \else\r
 297      \ifx #5s\global\NAT@numberstrue\global\NAT@supertrue\r
 298    \fi\fi\r
 299    \gdef\NAT@aysep{#6}\gdef\NAT@yrsep{#7}%\r
 300    \gdef\NAT@cmt{#1}%\r
 301    \NAT@@setcites\r
 302   }\r
 303 \newcommand\setcitestyle[1]{\r
 304  \@for\@tempa:=#1\do\r
 305  {\def\@tempb{round}\ifx\@tempa\@tempb\r
 306     \renewcommand\NAT@open{(}\renewcommand\NAT@close{)}\fi\r
 307   \def\@tempb{square}\ifx\@tempa\@tempb\r
 308     \renewcommand\NAT@open{[}\renewcommand\NAT@close{]}\fi\r
 309   \def\@tempb{angle}\ifx\@tempa\@tempb\r
 310     \renewcommand\NAT@open{$<$}\renewcommand\NAT@close{$>$}\fi\r
 311   \def\@tempb{curly}\ifx\@tempa\@tempb\r
 312     \renewcommand\NAT@open{\{}\renewcommand\NAT@close{\}}\fi\r
 313   \def\@tempb{semicolon}\ifx\@tempa\@tempb\r
 314     \renewcommand\NAT@sep{;}\fi\r
 315   \def\@tempb{colon}\ifx\@tempa\@tempb\r
 316     \renewcommand\NAT@sep{;}\fi\r
 317   \def\@tempb{comma}\ifx\@tempa\@tempb\r
 318     \renewcommand\NAT@sep{,}\fi\r
 319   \def\@tempb{authoryear}\ifx\@tempa\@tempb\r
 320     \NAT@numbersfalse\fi\r
 321   \def\@tempb{numbers}\ifx\@tempa\@tempb\r
 322     \NAT@numberstrue\NAT@superfalse\fi\r
 323   \def\@tempb{super}\ifx\@tempa\@tempb\r
 324     \NAT@numberstrue\NAT@supertrue\fi\r
 325   \expandafter\NAT@find@eq\@tempa=\relax\@nil\r
 326   \if\@tempc\relax\else\r
 327     \expandafter\NAT@rem@eq\@tempc\r
 328     \def\@tempb{open}\ifx\@tempa\@tempb\r
 329      \xdef\NAT@open{\@tempc}\fi\r
 330     \def\@tempb{close}\ifx\@tempa\@tempb\r
 331      \xdef\NAT@close{\@tempc}\fi\r
 332     \def\@tempb{aysep}\ifx\@tempa\@tempb\r
 333      \xdef\NAT@aysep{\@tempc}\fi\r
 334     \def\@tempb{yysep}\ifx\@tempa\@tempb\r
 335      \xdef\NAT@yrsep{\@tempc}\fi\r
 336     \def\@tempb{notesep}\ifx\@tempa\@tempb\r
 337      \xdef\NAT@cmt{\@tempc}\fi\r
 338     \def\@tempb{citesep}\ifx\@tempa\@tempb\r
 339      \xdef\NAT@sep{\@tempc}\fi\r
 340   \fi\r
 341  }%\r
 342  \NAT@@setcites\r
 343 }\r
 344  \def\NAT@find@eq#1=#2\@nil{\def\@tempa{#1}\def\@tempc{#2}}\r
 345  \def\NAT@rem@eq#1={\def\@tempc{#1}}\r
 346  \def\NAT@@setcites{\global\let\bibstyle\@gobble}\r
 347 \AtBeginDocument{\let\NAT@@setcites\NAT@set@cites}\r
 348 \newcommand\NAT@open{(} \newcommand\NAT@close{)}\r
 349 \newcommand\NAT@sep{;}\r
 350 \ProcessOptions\r
 351 \newcommand\NAT@aysep{,} \newcommand\NAT@yrsep{,}\r
 352 \newcommand\NAT@cmt{, }\r
 353 \newcommand\NAT@cite%\r
 354     [3]{\ifNAT@swa\NAT@@open\if*#2*\else#2\NAT@spacechar\fi\r
 355         #1\if*#3*\else\NAT@cmt#3\fi\NAT@@close\else#1\fi\endgroup}\r
 356 \newcommand\NAT@citenum%\r
 357     [3]{\ifNAT@swa\NAT@@open\if*#2*\else#2\NAT@spacechar\fi\r
 358         #1\if*#3*\else\NAT@cmt#3\fi\NAT@@close\else#1\fi\endgroup}\r
 359 \newcommand\NAT@citesuper[3]{\ifNAT@swa\r
 360 \if*#2*\else#2\NAT@spacechar\fi\r
 361 \unskip\kern\p@\textsuperscript{\NAT@@open#1\NAT@@close}%\r
 362    \if*#3*\else\NAT@spacechar#3\fi\else #1\fi\endgroup}\r
 363 \providecommand\textsuperscript[1]{\mbox{$^{\mbox{\scriptsize#1}}$}}\r
 364 \begingroup \catcode`\_=8\r
 365 \gdef\NAT@ifcat@num#1{%\r
 366  \ifcat_\ifnum\z@<0#1_\else A\fi\r
 367   \expandafter\@firstoftwo\r
 368  \else\r
 369   \expandafter\@secondoftwo\r
 370  \fi\r
 371 }%\r
 372 \endgroup\r
 373 \providecommand\@firstofone[1]{#1}\r
 374 \newcommand\NAT@citexnum{}\r
 375 \def\NAT@citexnum[#1][#2]#3{%\r
 376   \NAT@reset@parser\r
 377   \NAT@sort@cites{#3}%\r
 378   \NAT@reset@citea\r
 379   \@cite{\def\NAT@num{-1}\let\NAT@last@yr\relax\let\NAT@nm\@empty\r
 380     \@for\@citeb:=\NAT@cite@list\do\r
 381     {\@safe@activestrue\r
 382      \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%\r
 383      \@safe@activesfalse\r
 384      \@ifundefined{b@\@citeb\@extra@b@citeb}{%\r
 385        {\reset@font\bfseries?}\r
 386         \NAT@citeundefined\PackageWarning{natbib}%\r
 387        {Citation `\@citeb' on page \thepage \space undefined}}%\r
 388      {\let\NAT@last@num\NAT@num\let\NAT@last@nm\NAT@nm\r
 389       \NAT@parse{\@citeb}%\r
 390       \ifNAT@longnames\@ifundefined{bv@\@citeb\@extra@b@citeb}{%\r
 391         \let\NAT@name=\NAT@all@names\r
 392         \global\@namedef{bv@\@citeb\@extra@b@citeb}{}}{}%\r
 393       \fi\r
 394       \ifNAT@full\let\NAT@nm\NAT@all@names\else\r
 395         \let\NAT@nm\NAT@name\fi\r
 396       \ifNAT@swa\r
 397        \@ifnum{\NAT@ctype>\@ne}{%\r
 398         \@citea\r
 399         \NAT@hyper@{\@ifnum{\NAT@ctype=\tw@}{\NAT@test{\NAT@ctype}}{\NAT@alias}}%\r
 400        }{%\r
 401         \@ifnum{\NAT@cmprs>\z@}{%\r
 402          \NAT@ifcat@num\NAT@num\r
 403           {\let\NAT@nm=\NAT@num}%\r
 404           {\def\NAT@nm{-2}}%\r
 405          \NAT@ifcat@num\NAT@last@num\r
 406           {\@tempcnta=\NAT@last@num\relax}%\r
 407           {\@tempcnta\m@ne}%\r
 408          \@ifnum{\NAT@nm=\@tempcnta}{%\r
 409           \@ifnum{\NAT@merge>\@ne}{}{\NAT@last@yr@mbox}%\r
 410          }{%\r
 411            \advance\@tempcnta by\@ne\r
 412            \@ifnum{\NAT@nm=\@tempcnta}{%\r
 413              \ifx\NAT@last@yr\relax\r
 414                \def@NAT@last@yr{\@citea}%\r
 415              \else\r
 416                \def@NAT@last@yr{--\NAT@penalty}%\r
 417              \fi\r
 418            }{%\r
 419              \NAT@last@yr@mbox\r
 420            }%\r
 421          }%\r
 422         }{%\r
 423          \@tempswatrue\r
 424          \@ifnum{\NAT@merge>\@ne}{\@ifnum{\NAT@last@num=\NAT@num\relax}{\@tempswafalse}{}}{}%\r
 425          \if@tempswa\NAT@citea@mbox\fi\r
 426         }%\r
 427        }%\r
 428        \NAT@def@citea\r
 429       \else\r
 430         \ifcase\NAT@ctype\r
 431           \ifx\NAT@last@nm\NAT@nm \NAT@yrsep\NAT@penalty\NAT@space\else\r
 432             \@citea \NAT@test{\@ne}\NAT@spacechar\NAT@mbox{\NAT@super@kern\NAT@@open}%\r
 433           \fi\r
 434           \if*#1*\else#1\NAT@spacechar\fi\r
 435           \NAT@mbox{\NAT@hyper@{{\citenumfont{\NAT@num}}}}%\r
 436           \NAT@def@citea@box\r
 437         \or\r
 438           \NAT@hyper@citea@space{\NAT@test{\NAT@ctype}}%\r
 439         \or\r
 440           \NAT@hyper@citea@space{\NAT@test{\NAT@ctype}}%\r
 441         \or\r
 442           \NAT@hyper@citea@space\NAT@alias\r
 443         \fi\r
 444       \fi\r
 445      }%\r
 446     }%\r
 447       \@ifnum{\NAT@cmprs>\z@}{\NAT@last@yr}{}%\r
 448       \ifNAT@swa\else\r
 449         \@ifnum{\NAT@ctype=\z@}{%\r
 450           \if*#2*\else\NAT@cmt#2\fi\r
 451         }{}%\r
 452         \NAT@mbox{\NAT@@close}%\r
 453       \fi\r
 454   }{#1}{#2}%\r
 455 }%\r
 456 \def\NAT@citea@mbox{%\r
 457  \@citea\mbox{\NAT@hyper@{{\citenumfont{\NAT@num}}}}%\r
 458 }%\r
 459 \def\NAT@hyper@#1{%\r
 460  \hyper@natlinkstart{\@citeb\@extra@b@citeb}#1\hyper@natlinkend\r
 461 }%\r
 462 \def\NAT@hyper@citea#1{%\r
 463  \@citea\r
 464  \NAT@hyper@{#1}%\r
 465  \NAT@def@citea\r
 466 }%\r
 467 \def\NAT@hyper@citea@space#1{%\r
 468  \@citea\r
 469  \NAT@hyper@{#1}%\r
 470  \NAT@def@citea@space\r
 471 }%\r
 472 \def\def@NAT@last@yr#1{%\r
 473  \protected@edef\NAT@last@yr{%\r
 474   #1%\r
 475   \noexpand\mbox{%\r
 476    \noexpand\hyper@natlinkstart{\@citeb\@extra@b@citeb}%\r
 477    {\noexpand\citenumfont{\NAT@num}}%\r
 478    \noexpand\hyper@natlinkend\r
 479   }%\r
 480  }%\r
 481 }%\r
 482 \def\NAT@last@yr@mbox{%\r
 483  \NAT@last@yr\let\NAT@last@yr\relax\r
 484  \NAT@citea@mbox\r
 485 }%\r
 486 \newcommand\NAT@test[1]{%\r
 487  \@ifnum{#1=\@ne}{%\r
 488   \ifx\NAT@nm\NAT@noname\r
 489    \begingroup\reset@font\bfseries(author?)\endgroup\r
 490    \PackageWarning{natbib}{%\r
 491     Author undefined for citation`\@citeb' \MessageBreak on page \thepage%\r
 492    }%\r
 493   \else \NAT@nm\r
 494   \fi\r
 495  }{%\r
 496   \if\relax\NAT@date\relax\r
 497    \begingroup\reset@font\bfseries(year?)\endgroup\r
 498    \PackageWarning{natbib}{%\r
 499     Year undefined for citation`\@citeb' \MessageBreak on page \thepage%\r
 500    }%\r
 501   \else \NAT@date\r
 502   \fi\r
 503  }%\r
 504 }%\r
 505 \let\citenumfont=\@empty\r
 506 \newcommand\NAT@citex{}\r
 507 \def\NAT@citex%\r
 508   [#1][#2]#3{%\r
 509   \NAT@reset@parser\r
 510   \NAT@sort@cites{#3}%\r
 511   \NAT@reset@citea\r
 512   \@cite{\let\NAT@nm\@empty\let\NAT@year\@empty\r
 513     \@for\@citeb:=\NAT@cite@list\do\r
 514     {\@safe@activestrue\r
 515      \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%\r
 516      \@safe@activesfalse\r
 517      \@ifundefined{b@\@citeb\@extra@b@citeb}{\@citea%\r
 518        {\reset@font\bfseries ?}\NAT@citeundefined\r
 519                  \PackageWarning{natbib}%\r
 520        {Citation `\@citeb' on page \thepage \space undefined}\def\NAT@date{}}%\r
 521      {\let\NAT@last@nm=\NAT@nm\let\NAT@last@yr=\NAT@year\r
 522       \NAT@parse{\@citeb}%\r
 523       \ifNAT@longnames\@ifundefined{bv@\@citeb\@extra@b@citeb}{%\r
 524         \let\NAT@name=\NAT@all@names\r
 525         \global\@namedef{bv@\@citeb\@extra@b@citeb}{}}{}%\r
 526       \fi\r
 527      \ifNAT@full\let\NAT@nm\NAT@all@names\else\r
 528        \let\NAT@nm\NAT@name\fi\r
 529      \ifNAT@swa\ifcase\NAT@ctype\r
 530        \if\relax\NAT@date\relax\r
 531          \@citea\NAT@hyper@{\NAT@nmfmt{\NAT@nm}\NAT@date}%\r
 532        \else\r
 533          \ifx\NAT@last@nm\NAT@nm\NAT@yrsep\r
 534             \ifx\NAT@last@yr\NAT@year\r
 535               \def\NAT@temp{{?}}%\r
 536               \ifx\NAT@temp\NAT@exlab\PackageWarningNoLine{natbib}%\r
 537                {Multiple citation on page \thepage: same authors and\r
 538                year\MessageBreak without distinguishing extra\r
 539                letter,\MessageBreak appears as question mark}\fi\r
 540               \NAT@hyper@{\NAT@exlab}%\r
 541             \else\unskip\NAT@spacechar\r
 542               \NAT@hyper@{\NAT@date}%\r
 543             \fi\r
 544          \else\r
 545            \@citea\NAT@hyper@{%\r
 546              \NAT@nmfmt{\NAT@nm}%\r
 547              \hyper@natlinkbreak{%\r
 548                \NAT@aysep\NAT@spacechar}{\@citeb\@extra@b@citeb\r
 549              }%\r
 550              \NAT@date\r
 551            }%\r
 552          \fi\r
 553        \fi\r
 554      \or\@citea\NAT@hyper@{\NAT@nmfmt{\NAT@nm}}%\r
 555      \or\@citea\NAT@hyper@{\NAT@date}%\r
 556      \or\@citea\NAT@hyper@{\NAT@alias}%\r
 557      \fi \NAT@def@citea\r
 558      \else\r
 559        \ifcase\NAT@ctype\r
 560         \if\relax\NAT@date\relax\r
 561           \@citea\NAT@hyper@{\NAT@nmfmt{\NAT@nm}}%\r
 562         \else\r
 563          \ifx\NAT@last@nm\NAT@nm\NAT@yrsep\r
 564             \ifx\NAT@last@yr\NAT@year\r
 565               \def\NAT@temp{{?}}%\r
 566               \ifx\NAT@temp\NAT@exlab\PackageWarningNoLine{natbib}%\r
 567                {Multiple citation on page \thepage: same authors and\r
 568                year\MessageBreak without distinguishing extra\r
 569                letter,\MessageBreak appears as question mark}\fi\r
 570               \NAT@hyper@{\NAT@exlab}%\r
 571             \else\r
 572               \unskip\NAT@spacechar\r
 573               \NAT@hyper@{\NAT@date}%\r
 574             \fi\r
 575          \else\r
 576            \@citea\NAT@hyper@{%\r
 577              \NAT@nmfmt{\NAT@nm}%\r
 578              \hyper@natlinkbreak{\NAT@spacechar\NAT@@open\if*#1*\else#1\NAT@spacechar\fi}%\r
 579                {\@citeb\@extra@b@citeb}%\r
 580              \NAT@date\r
 581            }%\r
 582          \fi\r
 583         \fi\r
 584        \or\@citea\NAT@hyper@{\NAT@nmfmt{\NAT@nm}}%\r
 585        \or\@citea\NAT@hyper@{\NAT@date}%\r
 586        \or\@citea\NAT@hyper@{\NAT@alias}%\r
 587        \fi\r
 588        \if\relax\NAT@date\relax\r
 589          \NAT@def@citea\r
 590        \else\r
 591          \NAT@def@citea@close\r
 592        \fi\r
 593      \fi\r
 594      }}\ifNAT@swa\else\if*#2*\else\NAT@cmt#2\fi\r
 595      \if\relax\NAT@date\relax\else\NAT@@close\fi\fi}{#1}{#2}}\r
 596 \def\NAT@spacechar{\ }%\r
 597 \def\NAT@separator{\NAT@sep\NAT@penalty}%\r
 598 \def\NAT@reset@citea{\c@NAT@ctr\@ne\let\@citea\@empty}%\r
 599 \def\NAT@def@citea{\def\@citea{\NAT@separator\NAT@space}}%\r
 600 \def\NAT@def@citea@space{\def\@citea{\NAT@separator\NAT@spacechar}}%\r
 601 \def\NAT@def@citea@close{\def\@citea{\NAT@@close\NAT@separator\NAT@space}}%\r
 602 \def\NAT@def@citea@box{\def\@citea{\NAT@mbox{\NAT@@close}\NAT@separator\NAT@spacechar}}%\r
 603 \newif\ifNAT@par \NAT@partrue\r
 604 \newcommand\NAT@@open{\ifNAT@par\NAT@open\fi}\r
 605 \newcommand\NAT@@close{\ifNAT@par\NAT@close\fi}\r
 606 \newcommand\NAT@alias{\@ifundefined{al@\@citeb\@extra@b@citeb}{%\r
 607   {\reset@font\bfseries(alias?)}\PackageWarning{natbib}\r
 608   {Alias undefined for citation `\@citeb'\r
 609   \MessageBreak on page \thepage}}{\@nameuse{al@\@citeb\@extra@b@citeb}}}\r
 610 \let\NAT@up\relax\r
 611 \newcommand\NAT@Up[1]{{\let\protect\@unexpandable@protect\let~\relax\r
 612   \expandafter\NAT@deftemp#1}\expandafter\NAT@UP\NAT@temp}\r
 613 \newcommand\NAT@deftemp[1]{\xdef\NAT@temp{#1}}\r
 614 \newcommand\NAT@UP[1]{\let\@tempa\NAT@UP\ifcat a#1\MakeUppercase{#1}%\r
 615   \let\@tempa\relax\else#1\fi\@tempa}\r
 616 \newcommand\shortcites[1]{%\r
 617   \@bsphack\@for\@citeb:=#1\do\r
 618   {\@safe@activestrue\r
 619    \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%\r
 620    \@safe@activesfalse\r
 621    \global\@namedef{bv@\@citeb\@extra@b@citeb}{}}\@esphack}\r
 622 \newcommand\NAT@biblabel[1]{\hfill}\r
 623 \newcommand\NAT@biblabelnum[1]{\bibnumfmt{#1}}\r
 624 \let\bibnumfmt\@empty\r
 625 \providecommand\@biblabel[1]{[#1]}\r
 626 \AtBeginDocument{\ifx\bibnumfmt\@empty\let\bibnumfmt\@biblabel\fi}\r
 627 \newcommand\NAT@bibsetnum[1]{\settowidth\labelwidth{\@biblabel{#1}}%\r
 628    \setlength{\leftmargin}{\labelwidth}\addtolength{\leftmargin}{\labelsep}%\r
 629    \setlength{\itemsep}{\bibsep}\setlength{\parsep}{\z@}%\r
 630    \ifNAT@openbib\r
 631      \addtolength{\leftmargin}{\bibindent}%\r
 632      \setlength{\itemindent}{-\bibindent}%\r
 633      \setlength{\listparindent}{\itemindent}%\r
 634      \setlength{\parsep}{0pt}%\r
 635    \fi\r
 636 }\r
 637 \newlength{\bibhang}\r
 638 \setlength{\bibhang}{1em}\r
 639 \newlength{\bibsep}\r
 640  {\@listi \global\bibsep\itemsep \global\advance\bibsep by\parsep}\r
 641 \r
 642 \newcommand\NAT@bibsetup%\r
 643    [1]{\setlength{\leftmargin}{\bibhang}\setlength{\itemindent}{-\leftmargin}%\r
 644        \setlength{\itemsep}{\bibsep}\setlength{\parsep}{\z@}}\r
 645 \newcommand\NAT@set@cites{%\r
 646   \ifNAT@numbers\r
 647     \ifNAT@super \let\@cite\NAT@citesuper\r
 648        \def\NAT@mbox##1{\unskip\nobreak\textsuperscript{##1}}%\r
 649        \let\citeyearpar=\citeyear\r
 650        \let\NAT@space\relax\r
 651        \def\NAT@super@kern{\kern\p@}%\r
 652     \else\r
 653        \let\NAT@mbox=\mbox\r
 654        \let\@cite\NAT@citenum\r
 655        \let\NAT@space\NAT@spacechar\r
 656        \let\NAT@super@kern\relax\r
 657     \fi\r
 658     \let\@citex\NAT@citexnum\r
 659     \let\@biblabel\NAT@biblabelnum\r
 660     \let\@bibsetup\NAT@bibsetnum\r
 661     \renewcommand\NAT@idxtxt{\NAT@name\NAT@spacechar\NAT@open\NAT@num\NAT@close}%\r
 662     \def\natexlab##1{}%\r
 663     \def\NAT@penalty{\penalty\@m}%\r
 664   \else\r
 665     \let\@cite\NAT@cite\r
 666     \let\@citex\NAT@citex\r
 667     \let\@biblabel\NAT@biblabel\r
 668     \let\@bibsetup\NAT@bibsetup\r
 669     \let\NAT@space\NAT@spacechar\r
 670     \let\NAT@penalty\@empty\r
 671     \renewcommand\NAT@idxtxt{\NAT@name\NAT@spacechar\NAT@open\NAT@date\NAT@close}%\r
 672     \def\natexlab##1{##1}%\r
 673   \fi}\r
 674 \AtBeginDocument{\NAT@set@cites}\r
 675 \AtBeginDocument{\ifx\SK@def\@undefined\else\r
 676 \ifx\SK@cite\@empty\else\r
 677   \SK@def\@citex[#1][#2]#3{\SK@\SK@@ref{#3}\SK@@citex[#1][#2]{#3}}\fi\r
 678 \ifx\SK@citeauthor\@undefined\def\HAR@checkdef{}\else\r
 679   \let\citeauthor\SK@citeauthor\r
 680   \let\citefullauthor\SK@citefullauthor\r
 681   \let\citeyear\SK@citeyear\fi\r
 682 \fi}\r
 683 \newif\ifNAT@full\NAT@fullfalse\r
 684 \newif\ifNAT@swa\r
 685 \DeclareRobustCommand\citet\r
 686    {\begingroup\NAT@swafalse\let\NAT@ctype\z@\NAT@partrue\r
 687      \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 688 \newcommand\NAT@citetp{\@ifnextchar[{\NAT@@citetp}{\NAT@@citetp[]}}\r
 689 \newcommand\NAT@@citetp{}\r
 690 \def\NAT@@citetp[#1]{\@ifnextchar[{\@citex[#1]}{\@citex[][#1]}}\r
 691 \DeclareRobustCommand\citep\r
 692    {\begingroup\NAT@swatrue\let\NAT@ctype\z@\NAT@partrue\r
 693          \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 694 \DeclareRobustCommand\cite\r
 695     {\begingroup\let\NAT@ctype\z@\NAT@partrue\NAT@swatrue\r
 696       \@ifstar{\NAT@fulltrue\NAT@cites}{\NAT@fullfalse\NAT@cites}}\r
 697 \newcommand\NAT@cites{\@ifnextchar [{\NAT@@citetp}{%\r
 698      \ifNAT@numbers\else\r
 699      \NAT@swafalse\r
 700      \fi\r
 701     \NAT@@citetp[]}}\r
 702 \DeclareRobustCommand\citealt\r
 703    {\begingroup\NAT@swafalse\let\NAT@ctype\z@\NAT@parfalse\r
 704          \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 705 \DeclareRobustCommand\citealp\r
 706    {\begingroup\NAT@swatrue\let\NAT@ctype\z@\NAT@parfalse\r
 707          \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 708 \DeclareRobustCommand\citenum\r
 709    {\begingroup\r
 710      \NAT@swatrue\let\NAT@ctype\z@\NAT@parfalse\let\textsuperscript\NAT@spacechar\r
 711      \NAT@citexnum[][]}\r
 712 \DeclareRobustCommand\citeauthor\r
 713    {\begingroup\NAT@swafalse\let\NAT@ctype\@ne\NAT@parfalse\r
 714     \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 715 \DeclareRobustCommand\Citet\r
 716    {\begingroup\NAT@swafalse\let\NAT@ctype\z@\NAT@partrue\r
 717      \let\NAT@up\NAT@Up\r
 718      \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 719 \DeclareRobustCommand\Citep\r
 720    {\begingroup\NAT@swatrue\let\NAT@ctype\z@\NAT@partrue\r
 721      \let\NAT@up\NAT@Up\r
 722          \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 723 \DeclareRobustCommand\Citealt\r
 724    {\begingroup\NAT@swafalse\let\NAT@ctype\z@\NAT@parfalse\r
 725      \let\NAT@up\NAT@Up\r
 726          \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 727 \DeclareRobustCommand\Citealp\r
 728    {\begingroup\NAT@swatrue\let\NAT@ctype\z@\NAT@parfalse\r
 729      \let\NAT@up\NAT@Up\r
 730          \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 731 \DeclareRobustCommand\Citeauthor\r
 732    {\begingroup\NAT@swafalse\let\NAT@ctype\@ne\NAT@parfalse\r
 733      \let\NAT@up\NAT@Up\r
 734     \@ifstar{\NAT@fulltrue\NAT@citetp}{\NAT@fullfalse\NAT@citetp}}\r
 735 \DeclareRobustCommand\citeyear\r
 736    {\begingroup\NAT@swafalse\let\NAT@ctype\tw@\NAT@parfalse\NAT@citetp}\r
 737 \DeclareRobustCommand\citeyearpar\r
 738    {\begingroup\NAT@swatrue\let\NAT@ctype\tw@\NAT@partrue\NAT@citetp}\r
 739 \newcommand\citetext[1]{\NAT@open#1\NAT@close}\r
 740 \DeclareRobustCommand\citefullauthor\r
 741    {\citeauthor*}\r
 742 \newcommand\defcitealias[2]{%\r
 743    \@ifundefined{al@#1\@extra@b@citeb}{}\r
 744    {\PackageWarning{natbib}{Overwriting existing alias for citation #1}}\r
 745    \@namedef{al@#1\@extra@b@citeb}{#2}}\r
 746 \DeclareRobustCommand\citetalias{\begingroup\r
 747    \NAT@swafalse\let\NAT@ctype\thr@@\NAT@parfalse\NAT@citetp}\r
 748 \DeclareRobustCommand\citepalias{\begingroup\r
 749    \NAT@swatrue\let\NAT@ctype\thr@@\NAT@partrue\NAT@citetp}\r
 750 \renewcommand\nocite[1]{\@bsphack\r
 751   \@for\@citeb:=#1\do{%\r
 752     \@safe@activestrue\r
 753     \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%\r
 754     \@safe@activesfalse\r
 755     \if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}\fi\r
 756     \if*\@citeb\else\r
 757     \@ifundefined{b@\@citeb\@extra@b@citeb}{%\r
 758        \NAT@citeundefined \PackageWarning{natbib}%\r
 759        {Citation `\@citeb' undefined}}{}\fi}%\r
 760   \@esphack}\r
 761 \newcommand\NAT@parse[1]{%\r
 762   \begingroup\r
 763    \let\protect=\@unexpandable@protect\r
 764    \let~\relax\r
 765    \let\active@prefix=\@gobble\r
 766    \edef\NAT@temp{\csname b@#1\@extra@b@citeb\endcsname}%\r
 767    \aftergroup\NAT@split\r
 768    \expandafter\r
 769   \endgroup\r
 770   \NAT@temp{}{}{}{}{}@@%\r
 771   \expandafter\NAT@parse@date\NAT@date??????@@%\r
 772   \ifciteindex\NAT@index\fi\r
 773 }%\r
 774 \def\NAT@split#1#2#3#4#5@@{%\r
 775   \gdef\NAT@num{#1}\gdef\NAT@name{#3}\gdef\NAT@date{#2}%\r
 776   \gdef\NAT@all@names{#4}%\r
 777   \ifx\NAT@num\@empty\gdef\NAT@num{0}\fi\r
 778   \ifx\NAT@noname\NAT@all@names \gdef\NAT@all@names{#3}\fi\r
 779 }%\r
 780 \def\NAT@reset@parser{%\r
 781   \global\let\NAT@num\@empty\r
 782   \global\let\NAT@name\@empty\r
 783   \global\let\NAT@date\@empty\r
 784   \global\let\NAT@all@names\@empty\r
 785 }%\r
 786 \newcommand\NAT@parse@date{}\r
 787 \def\NAT@parse@date#1#2#3#4#5#6@@{%\r
 788   \ifnum\the\catcode`#1=11\def\NAT@year{}\def\NAT@exlab{#1}\else\r
 789   \ifnum\the\catcode`#2=11\def\NAT@year{#1}\def\NAT@exlab{#2}\else\r
 790   \ifnum\the\catcode`#3=11\def\NAT@year{#1#2}\def\NAT@exlab{#3}\else\r
 791   \ifnum\the\catcode`#4=11\def\NAT@year{#1#2#3}\def\NAT@exlab{#4}\else\r
 792     \def\NAT@year{#1#2#3#4}\def\NAT@exlab{{#5}}\fi\fi\fi\fi}\r
 793 \newcommand\NAT@index{}\r
 794 \let\NAT@makeindex=\makeindex\r
 795 \renewcommand\makeindex{\NAT@makeindex\r
 796   \renewcommand\NAT@index{\@bsphack\begingroup\r
 797      \def~{\string~}\@wrindex{\NAT@idxtxt}}}\r
 798 \newcommand\NAT@idxtxt{\NAT@name\NAT@spacechar\NAT@open\NAT@date\NAT@close}\r
 799 \@ifxundefined\@indexfile{}{\let\NAT@makeindex\relax\makeindex}\r
 800 \newif\ifciteindex \citeindexfalse\r
 801 \newcommand\citeindextype{default}\r
 802 \newcommand\NAT@index@alt{{\let\protect=\noexpand\let~\relax\r
 803   \xdef\NAT@temp{\NAT@idxtxt}}\expandafter\NAT@exp\NAT@temp\@nil}\r
 804 \newcommand\NAT@exp{}\r
 805 \def\NAT@exp#1\@nil{\index[\citeindextype]{#1}}\r
 806 \r
 807 \AtBeginDocument{%\r
 808 \@ifpackageloaded{index}{\let\NAT@index=\NAT@index@alt}{}}\r
 809 \newcommand\NAT@ifcmd{\futurelet\NAT@temp\NAT@ifxcmd}\r
 810 \newcommand\NAT@ifxcmd{\ifx\NAT@temp\relax\else\expandafter\NAT@bare\fi}\r
 811 \def\NAT@bare#1(#2)#3(@)#4\@nil#5{%\r
 812   \if @#2\r
 813     \expandafter\NAT@apalk#1, , \@nil{#5}%\r
 814   \else\r
 815   \NAT@wrout{\the\c@NAT@ctr}{#2}{#1}{#3}{#5}%\r
 816 \fi\r
 817 }\r
 818 \newcommand\NAT@wrout[5]{%\r
 819 \if@filesw\r
 820       {\let\protect\noexpand\let~\relax\r
 821        \immediate\r
 822        \write\@auxout{\string\bibcite{#5}{{#1}{#2}{{#3}}{{#4}}}}}\fi\r
 823 \ignorespaces}\r
 824 \def\NAT@noname{{}}\r
 825 \renewcommand\bibitem{\@ifnextchar[{\@lbibitem}{\@lbibitem[]}}%\r
 826 \let\NAT@bibitem@first@sw\@secondoftwo\r
 827 \def\@lbibitem[#1]#2{%\r
 828   \if\relax\@extra@b@citeb\relax\else\r
 829     \@ifundefined{br@#2\@extra@b@citeb}{}{%\r
 830      \@namedef{br@#2}{\@nameuse{br@#2\@extra@b@citeb}}%\r
 831     }%\r
 832   \fi\r
 833   \@ifundefined{b@#2\@extra@b@citeb}{%\r
 834    \def\NAT@num{}%\r
 835   }{%\r
 836    \NAT@parse{#2}%\r
 837   }%\r
 838   \def\NAT@tmp{#1}%\r
 839   \expandafter\let\expandafter\bibitemOpen\csname NAT@b@open@#2\endcsname\r
 840   \expandafter\let\expandafter\bibitemShut\csname NAT@b@shut@#2\endcsname\r
 841   \@ifnum{\NAT@merge>\@ne}{%\r
 842    \NAT@bibitem@first@sw{%\r
 843     \@firstoftwo\r
 844    }{%\r
 845     \@ifundefined{NAT@b*@#2}{%\r
 846      \@firstoftwo\r
 847     }{%\r
 848      \expandafter\def\expandafter\NAT@num\expandafter{\the\c@NAT@ctr}%\r
 849      \@secondoftwo\r
 850     }%\r
 851    }%\r
 852   }{%\r
 853    \@firstoftwo\r
 854   }%\r
 855   {%\r
 856    \global\advance\c@NAT@ctr\@ne\r
 857    \@ifx{\NAT@tmp\@empty}{\@firstoftwo}{%\r
 858     \@secondoftwo\r
 859    }%\r
 860    {%\r
 861     \expandafter\def\expandafter\NAT@num\expandafter{\the\c@NAT@ctr}%\r
 862     \global\NAT@stdbsttrue\r
 863    }{}%\r
 864    \bibitem@fin\r
 865    \item[\hfil\NAT@anchor{#2}{\NAT@num}]%\r
 866    \global\let\NAT@bibitem@first@sw\@secondoftwo\r
 867    \NAT@bibitem@init\r
 868   }%\r
 869   {%\r
 870    \NAT@anchor{#2}{}%\r
 871    \NAT@bibitem@cont\r
 872    \bibitem@fin\r
 873   }%\r
 874   \@ifx{\NAT@tmp\@empty}{%\r
 875     \NAT@wrout{\the\c@NAT@ctr}{}{}{}{#2}%\r
 876   }{%\r
 877     \expandafter\NAT@ifcmd\NAT@tmp(@)(@)\@nil{#2}%\r
 878   }%\r
 879 }%\r
 880 \def\bibitem@fin{%\r
 881  \@ifxundefined\@bibstop{}{\csname bibitem@\@bibstop\endcsname}%\r
 882 }%\r
 883 \def\NAT@bibitem@init{%\r
 884  \let\@bibstop\@undefined\r
 885 }%\r
 886 \def\NAT@bibitem@cont{%\r
 887  \let\bibitem@Stop\bibitemContinue\r
 888  \let\bibitem@NoStop\bibitemContinue\r
 889 }%\r
 890 \def\BibitemOpen{%\r
 891  \bibitemOpen\r
 892 }%\r
 893 \def\BibitemShut#1{%\r
 894  \def\@bibstop{#1}%\r
 895  \let\bibitem@Stop\bibitemStop\r
 896  \let\bibitem@NoStop\bibitemNoStop\r
 897  \@ifx{\bibitemShut\relax}{\let\@bibitemShut\@empty}{%\r
 898   \expandafter\def\expandafter\@bibitemShut\expandafter{\bibitemShut}%\r
 899  }%\r
 900 }%\r
 901 \def\@bibitemShut{}%\r
 902 \def\bibitemStop{\@bibitemShut}%\r
 903 \def\bibitemNoStop{%\r
 904  \@ifx{\@empty\@bibitemShut}{.\spacefactor\@mmm\space}{\@bibitemShut}%\r
 905 }%\r
 906 \def\bibitemContinue{%\r
 907  \@ifx{\@empty\@bibitemShut}{;\spacefactor\@mmm\space}{\@bibitemShut}%\r
 908 }%\r
 909 \mathchardef\@mmm=3000 %\r
 910 \let\bibitemOpen\relax\r
 911 \let\bibitemShut\relax\r
 912 \@ifnum{\NAT@merge>\@ne}{%\r
 913 \providecommand{\bibAnnote}[3]{%\r
 914   \BibitemShut{#1}%\r
 915   \def\@tempa{#3}\@ifx{\@tempa\@empty}{}{%\r
 916    \begin{quotation}\noindent\r
 917     \textsc{Key:}\ #2\\\textsc{Annotation:}\ \@tempa\r
 918    \end{quotation}%\r
 919   }%\r
 920   \ignorespaces\r
 921 }%\r
 922 \providecommand{\bibAnnoteFile}[2]{%\r
 923   \IfFileExists{#2}{%\r
 924     \bibAnnote{#1}{#2}{\input{#2}}%\r
 925   }{%\r
 926     \bibAnnote{#1}{#2}{}%\r
 927   }%\r
 928 }%\r
 929 }{}%\r
 930 \def\bibfield{\@ifnum{\NAT@merge>\tw@}{\@bibfield}{\@secondoftwo}}%\r
 931 \def\@bibfield#1#2{%\r
 932  \begingroup\r
 933   \let\Doi\@gobble\r
 934   \let\bibinfo\relax\r
 935   \let\restore@protect\@empty\r
 936   \protected@edef\@tempa{#2}%\r
 937   \aftergroup\def\aftergroup\@tempa\r
 938  \expandafter\endgroup\expandafter{\@tempa}%\r
 939  \expandafter\@ifx\expandafter{\csname @bib#1\endcsname\@tempa}{%\r
 940   \expandafter\let\expandafter\@tempa\csname @bib@X#1\endcsname\r
 941  }{%\r
 942   \expandafter\let\csname @bib#1\endcsname\@tempa\r
 943   \expandafter\let\expandafter\@tempa\csname @bib@Y#1\endcsname\r
 944  }%\r
 945  \@ifx{\@tempa\relax}{\let\@tempa\@firstofone}{}%\r
 946  \@tempa{#2}%\r
 947 }%\r
 948 \def\bibinfo#1{%\r
 949  \expandafter\let\expandafter\@tempa\csname bibinfo@X@#1\endcsname\r
 950  \@ifx{\@tempa\relax}{\@firstofone}{\@tempa}%\r
 951 }%\r
 952 \def\@bib@Xauthor#1{\let\@bib@Xjournal\@gobble}%\r
 953 \def\@bib@Xjournal#1{\begingroup\let\bibinfo@X@journal\@bib@Z@journal#1\endgroup}%\r
 954 \def\@bibibid@#1{\textit{ibid}.}%\r
 955 \appdef\NAT@bibitem@init{%\r
 956  \let\@bibauthor  \@empty\r
 957  \let\@bibjournal \@empty\r
 958  \let\@bib@Z@journal\@bibibid@\r
 959 }%\r
 960 \ifx\SK@lbibitem\@undefined\else\r
 961    \let\SK@lbibitem\@lbibitem\r
 962    \def\@lbibitem[#1]#2{%\r
 963      \SK@lbibitem[#1]{#2}\SK@\SK@@label{#2}\ignorespaces}\fi\r
 964 \newif\ifNAT@stdbst \NAT@stdbstfalse\r
 965 \r
 966 \AtEndDocument{%\r
 967   \ifNAT@stdbst\if@filesw\r
 968    \immediate\write\@auxout{%\r
 969     \string\providecommand\string\NAT@force@numbers{}%\r
 970     \string\NAT@force@numbers\r
 971    }%\r
 972   \fi\fi\r
 973  }\r
 974 \newcommand\NAT@force@numbers{%\r
 975   \ifNAT@numbers\else\r
 976   \PackageError{natbib}{Bibliography not compatible with author-year\r
 977   citations.\MessageBreak\r
 978   Press <return> to continue in numerical citation style}\r
 979   {Check the bibliography entries for non-compliant syntax,\MessageBreak\r
 980    or select author-year BibTeX style, e.g. plainnat}%\r
 981   \global\NAT@numberstrue\fi}\r
 982 \r
 983 \providecommand\bibcite{}\r
 984 \renewcommand\bibcite[2]{%\r
 985  \@ifundefined{b@#1\@extra@binfo}{\relax}{%\r
 986    \NAT@citemultiple\r
 987    \PackageWarningNoLine{natbib}{Citation `#1' multiply defined}%\r
 988  }%\r
 989  \global\@namedef{b@#1\@extra@binfo}{#2}%\r
 990 }%\r
 991 \AtEndDocument{\NAT@swatrue\let\bibcite\NAT@testdef}\r
 992 \newcommand\NAT@testdef[2]{%\r
 993   \def\NAT@temp{#2}%\r
 994   \expandafter \ifx \csname b@#1\@extra@binfo\endcsname\NAT@temp\r
 995   \else\r
 996     \ifNAT@swa \NAT@swafalse\r
 997       \PackageWarningNoLine{natbib}{%\r
 998         Citation(s) may have changed.\MessageBreak\r
 999         Rerun to get citations correct%\r
1000       }%\r
1001     \fi\r
1002   \fi\r
1003 }%\r
1004 \newcommand\NAT@apalk{}\r
1005 \def\NAT@apalk#1, #2, #3\@nil#4{%\r
1006   \if\relax#2\relax\r
1007     \global\NAT@stdbsttrue\r
1008     \NAT@wrout{#1}{}{}{}{#4}%\r
1009   \else\r
1010     \NAT@wrout{\the\c@NAT@ctr}{#2}{#1}{}{#4}%\r
1011   \fi\r
1012 }%\r
1013 \newcommand\citeauthoryear{}\r
1014 \def\citeauthoryear#1#2#3(@)(@)\@nil#4{%\r
1015   \if\relax#3\relax\r
1016     \NAT@wrout{\the\c@NAT@ctr}{#2}{#1}{}{#4}%\r
1017   \else\r
1018     \NAT@wrout{\the\c@NAT@ctr}{#3}{#2}{#1}{#4}%\r
1019   \fi\r
1020 }%\r
1021 \newcommand\citestarts{\NAT@open}%\r
1022 \newcommand\citeends{\NAT@close}%\r
1023 \newcommand\betweenauthors{and}%\r
1024 \newcommand\astroncite{}\r
1025 \def\astroncite#1#2(@)(@)\@nil#3{%\r
1026  \NAT@wrout{\the\c@NAT@ctr}{#2}{#1}{}{#3}%\r
1027 }%\r
1028 \newcommand\citename{}\r
1029 \def\citename#1#2(@)(@)\@nil#3{\expandafter\NAT@apalk#1#2, \@nil{#3}}\r
1030 \newcommand\harvarditem[4][]{%\r
1031  \if\relax#1\relax\r
1032    \bibitem[#2(#3)]{#4}%\r
1033  \else\r
1034    \bibitem[#1(#3)#2]{#4}%\r
1035  \fi\r
1036 }%\r
1037 \newcommand\harvardleft{\NAT@open}\r
1038 \newcommand\harvardright{\NAT@close}\r
1039 \newcommand\harvardyearleft{\NAT@open}\r
1040 \newcommand\harvardyearright{\NAT@close}\r
1041 \AtBeginDocument{\providecommand{\harvardand}{and}}\r
1042 \newcommand\harvardurl[1]{\textbf{URL:} \textit{#1}}\r
1043 \providecommand\bibsection{}\r
1044 \@ifundefined{chapter}{%\r
1045   \renewcommand\bibsection{%\r
1046    \section*{\refname\@mkboth{\MakeUppercase{\refname}}{\MakeUppercase{\refname}}}%\r
1047   }%\r
1048 }{%\r
1049   \@ifxundefined\NAT@sectionbib{%\r
1050     \renewcommand\bibsection{%\r
1051       \chapter*{\bibname\@mkboth{\MakeUppercase{\bibname}}{\MakeUppercase{\bibname}}}%\r
1052     }%\r
1053   }{%\r
1054     \renewcommand\bibsection{%\r
1055       \section*{\bibname\ifx\@mkboth\@gobbletwo\else\markright{\MakeUppercase{\bibname}}\fi}%\r
1056     }%\r
1057   }%\r
1058 }%\r
1059 \@ifclassloaded{amsart}{\renewcommand\bibsection{\section*{\refname}}}{}%\r
1060 \@ifclassloaded{amsbook}{\renewcommand\bibsection{\chapter*{\bibname}}}{}%\r
1061 \@ifxundefined\bib@heading{}{\let\bibsection\bib@heading}%\r
1062 \newcounter{NAT@ctr}\r
1063 \renewenvironment{thebibliography}[1]{%\r
1064  \bibsection\r
1065  \parindent\z@\r
1066  \bibpreamble\r
1067  \bibfont\r
1068  \list{\@biblabel{\the\c@NAT@ctr}}{\@bibsetup{#1}\global\c@NAT@ctr\z@}%\r
1069  \ifNAT@openbib\r
1070    \renewcommand\newblock{\par}%\r
1071  \else\r
1072    \renewcommand\newblock{\hskip .11em \@plus.33em \@minus.07em}%\r
1073  \fi\r
1074  \sloppy\clubpenalty4000\widowpenalty4000\r
1075  \sfcode`\.\@m\r
1076  \let\NAT@bibitem@first@sw\@firstoftwo\r
1077     \let\citeN\cite \let\shortcite\cite\r
1078     \let\citeasnoun\cite\r
1079 }{%\r
1080  \bibitem@fin\r
1081  \bibpostamble\r
1082  \def\@noitemerr{%\r
1083   \PackageWarning{natbib}{Empty `thebibliography' environment}%\r
1084  }%\r
1085  \endlist\r
1086  \bibcleanup\r
1087 }%\r
1088 \let\bibfont\@empty\r
1089 \let\bibpreamble\@empty\r
1090 \let\bibpostamble\@empty\r
1091 \def\bibcleanup{\vskip-\lastskip}%\r
1092 \providecommand\reset@font{\relax}\r
1093 \providecommand\bibname{Bibliography}\r
1094 \providecommand\refname{References}\r
1095 \newcommand\NAT@citeundefined{\gdef \NAT@undefined {%\r
1096     \PackageWarningNoLine{natbib}{There were undefined citations}}}\r
1097 \let \NAT@undefined \relax\r
1098 \newcommand\NAT@citemultiple{\gdef \NAT@multiple {%\r
1099     \PackageWarningNoLine{natbib}{There were multiply defined citations}}}\r
1100 \let \NAT@multiple \relax\r
1101 \AtEndDocument{\NAT@undefined\NAT@multiple}\r
1102 \providecommand\@mkboth[2]{}\r
1103 \providecommand\MakeUppercase{\uppercase}\r
1104 \providecommand{\@extra@b@citeb}{}\r
1105 \gdef\@extra@binfo{}\r
1106 \def\NAT@anchor#1#2{%\r
1107  \hyper@natanchorstart{#1\@extra@b@citeb}%\r
1108   \def\@tempa{#2}\@ifx{\@tempa\@empty}{}{\@biblabel{#2}}%\r
1109  \hyper@natanchorend\r
1110 }%\r
1111 \providecommand\hyper@natanchorstart[1]{}%\r
1112 \providecommand\hyper@natanchorend{}%\r
1113 \providecommand\hyper@natlinkstart[1]{}%\r
1114 \providecommand\hyper@natlinkend{}%\r
1115 \providecommand\hyper@natlinkbreak[2]{#1}%\r
1116 \AtBeginDocument{%\r
1117   \@ifpackageloaded{babel}{%\r
1118      \let\org@@citex\@citex}{}}\r
1119 \providecommand\@safe@activestrue{}%\r
1120 \providecommand\@safe@activesfalse{}%\r
1121 \r
1122 \newcommand\NAT@sort@cites[1]{%\r
1123   \let\NAT@cite@list\@empty\r
1124   \@for\@citeb:=#1\do{\expandafter\NAT@star@cite\@citeb\@@}%\r
1125   \if@filesw\r
1126     \expandafter\immediate\expandafter\write\expandafter\@auxout\r
1127       \expandafter{\expandafter\string\expandafter\citation\expandafter{\NAT@cite@list}}%\r
1128   \fi\r
1129   \@ifnum{\NAT@sort>\z@}{%\r
1130     \expandafter\NAT@sort@cites@\expandafter{\NAT@cite@list}%\r
1131   }{}%\r
1132 }%\r
1133 \def\NAT@star@cite{%\r
1134   \let\NAT@star@sw\@secondoftwo\r
1135   \@ifnum{\NAT@merge>\z@}{%\r
1136    \@ifnextchar*{%\r
1137     \let\NAT@star@sw\@firstoftwo\r
1138     \NAT@star@cite@star\r
1139    }{%\r
1140     \NAT@star@cite@nostar\r
1141    }%\r
1142   }{%\r
1143    \NAT@star@cite@noextension\r
1144   }%\r
1145 }%\r
1146 \def\NAT@star@cite@star*{%\r
1147  \NAT@star@cite@nostar\r
1148 }%\r
1149 \def\NAT@star@cite@nostar{%\r
1150  \let\nat@keyopt@open\@empty\r
1151  \let\nat@keyopt@shut\@empty\r
1152  \@ifnextchar[{\NAT@star@cite@pre}{\NAT@star@cite@pre[]}%\r
1153 }%\r
1154 \def\NAT@star@cite@pre[#1]{%\r
1155  \def\nat@keyopt@open{#1}%\r
1156  \@ifnextchar[{\NAT@star@cite@post}{\NAT@star@cite@post[]}%\r
1157 }%\r
1158 \def\NAT@star@cite@post[#1]#2\@@{%\r
1159  \def\nat@keyopt@shut{#1}%\r
1160  \NAT@star@sw{\expandafter\global\expandafter\let\csname NAT@b*@#2\endcsname\@empty}{}%\r
1161  \NAT@cite@list@append{#2}%\r
1162 }%\r
1163 \def\NAT@star@cite@noextension#1\@@{%\r
1164   \let\nat@keyopt@open\@empty\r
1165   \let\nat@keyopt@shut\@empty\r
1166   \NAT@cite@list@append{#1}%\r
1167 }%\r
1168 \def\NAT@cite@list@append#1{%\r
1169   \edef\@citeb{\@firstofone#1\@empty}%\r
1170   \if@filesw\@ifxundefined\@cprwrite{}{\expandafter\@cprwrite\@citeb=}\fi\r
1171   \if\relax\nat@keyopt@open\relax\else\r
1172    \global\expandafter\let\csname NAT@b@open@\@citeb\endcsname\nat@keyopt@open\r
1173   \fi\r
1174   \if\relax\nat@keyopt@shut\relax\else\r
1175    \global\expandafter\let\csname NAT@b@shut@\@citeb\endcsname\nat@keyopt@shut\r
1176   \fi\r
1177   \toks@\expandafter{\NAT@cite@list}%\r
1178   \ifx\NAT@cite@list\@empty\r
1179     \@temptokena\expandafter{\@citeb}%\r
1180   \else\r
1181     \@temptokena\expandafter{\expandafter,\@citeb}%\r
1182   \fi\r
1183   \edef\NAT@cite@list{\the\toks@\the\@temptokena}%\r
1184 }%\r
1185 \newcommand\NAT@sort@cites@[1]{%\r
1186   \count@\z@\r
1187   \@tempcntb\m@ne\r
1188   \let\@celt\delimiter\r
1189   \def\NAT@num@list{}%\r
1190   \let\NAT@cite@list\@empty\r
1191   \let\NAT@nonsort@list\@empty\r
1192   \@for \@citeb:=#1\do{\NAT@make@cite@list}%\r
1193   \ifx\NAT@nonsort@list\@empty\else\r
1194    \protected@edef\NAT@cite@list{\NAT@cite@list\NAT@nonsort@list}%\r
1195   \fi\r
1196   \ifx\NAT@cite@list\@empty\else\r
1197    \protected@edef\NAT@cite@list{\expandafter\NAT@xcom\NAT@cite@list @@}%\r
1198   \fi\r
1199 }%\r
1200 \def\NAT@make@cite@list{%\r
1201   \advance\count@\@ne\r
1202   \@safe@activestrue\r
1203   \edef\@citeb{\expandafter\@firstofone\@citeb\@empty}%\r
1204   \@safe@activesfalse\r
1205   \@ifundefined{b@\@citeb\@extra@b@citeb}%\r
1206    {\def\NAT@num{A}}%\r
1207    {\NAT@parse{\@citeb}}%\r
1208   \NAT@ifcat@num\NAT@num\r
1209    {\@tempcnta\NAT@num \relax\r
1210     \@ifnum{\@tempcnta<\@tempcntb}{%\r
1211       \let\NAT@@cite@list=\NAT@cite@list\r
1212       \let\NAT@cite@list\@empty\r
1213       \begingroup\let\@celt=\NAT@celt\NAT@num@list\endgroup\r
1214       \protected@edef\NAT@num@list{%\r
1215        \expandafter\NAT@num@celt \NAT@num@list \@gobble @%\r
1216       }%\r
1217     }{%\r
1218       \protected@edef\NAT@num@list{\NAT@num@list \@celt{\NAT@num}}%\r
1219       \protected@edef\NAT@cite@list{\NAT@cite@list\@citeb,}%\r
1220       \@tempcntb\@tempcnta\r
1221     }%\r
1222    }%\r
1223    {\protected@edef\NAT@nonsort@list{\NAT@nonsort@list\@citeb,}}%\r
1224 }%\r
1225 \def\NAT@celt#1{%\r
1226   \@ifnum{#1>\@tempcnta}{%\r
1227     \xdef\NAT@cite@list{\NAT@cite@list\@citeb,\NAT@@cite@list}%\r
1228     \let\@celt\@gobble\r
1229   }{%\r
1230     \expandafter\def@NAT@cite@lists\NAT@@cite@list\@@\r
1231   }%\r
1232 }%\r
1233 \def\NAT@num@celt#1#2{%\r
1234  \ifx#1\@celt\r
1235   \@ifnum{#2>\@tempcnta}{%\r
1236     \@celt{\number\@tempcnta}%\r
1237     \@celt{#2}%\r
1238   }{%\r
1239     \@celt{#2}%\r
1240     \expandafter\NAT@num@celt\r
1241   }%\r
1242  \fi\r
1243 }%\r
1244 \def\def@NAT@cite@lists#1,#2\@@{%\r
1245   \xdef\NAT@cite@list{\NAT@cite@list#1,}%\r
1246   \xdef\NAT@@cite@list{#2}%\r
1247 }%\r
1248 \def\NAT@nextc#1,#2@@{#1,}\r
1249 \def\NAT@restc#1,#2{#2}\r
1250 \def\NAT@xcom#1,@@{#1}\r
1251 \InputIfFileExists{natbib.cfg}\r
1252        {\typeout{Local config file natbib.cfg used}}{}\r
1253 %% \r
1254 %% <<<<< End of generated file <<<<<<\r
1255 %%\r
1256 %% End of file `natbib.sty'.\r