intro

diff --git a/intro.tex b/intro.tex
index 10463ea2fcf14be284f605bb2cd583b7588d5bc0..e55151c3f47f1e341dfa69809b65d0f33a87df4a 100644 (file)
--- a/intro.tex
+++ b/intro.tex
@@ -88,8 +88,9 @@ suite is evaluated.
 
 
 
-
-The  remainder of  this  article  is organized  as  follows. The  next
+This article, which 
+is an extension of~\cite{DBLP:conf/secrypt/CouchotHGWB14} 
+is organized  as  follows. The  next
 section   is   devoted   to  preliminaries,   basic   notations,   and
 terminologies   regarding   Boolean    map   iterations.    Then,   in
 Section~\ref{sec:proofOfChaos},  Devaney's  definition   of  chaos  is