+}
+
+@article{Meijerink77,
+ author = {Meijerink, J.A. and Vorst, H.A. Van der},
+ title = {An Iterative Solution Method for Linear Systems of Which the Coefficient Matrix is a Symmetric {M}-Matrix},
+ journal = {Mathematics of Computation},
+ year = {1977},
+ volume = {31},
+ number = {137},
+ pages = {148--162},
+ publisher = {American Mathematical Society},
+ }
+
+@techreport{Huang89,
+ author = {Huang, Y. and Van der Vorst, H.A.},
+ title = {Some Observations on the Convergence Behavior of {GMRES}},
+ institution = {Delft Univ. Technology},
+ type = { Report 89--09},
+ year = {1989},
+}
+
+@article {Vorst94,
+author = {Van der Vorst, H. A. and Vuik, C.},
+title = {{GMRESR}: a family of nested {GMRES} methods},
+journal = {Numerical Linear Algebra with Applications},
+volume = {1},
+number = {4},
+publisher = {John Wiley & Sons, Ltd},
+issn = {1099-1506},
+url = {http://dx.doi.org/10.1002/nla.1680010404},
+doi = {10.1002/nla.1680010404},
+pages = {369--386},
+year = {1994},
+}
+
+
