Sparse Linear Algebra
Ronald F. Boisvert, Roldan Pozo, Karin Remington, Richard Barrett, and Jack Dongarra, The Matrix Market, a Web Repository for Test Matrix Data, in "Quality of Numerical Software: Assessment and Enhancement",
edited by Ronald F. Boisvert, Chapman & Hall, London, 1997, pp. 125-137.
Stiff ODEs (New location)
Ernst Hairer and Gerhard Wanner, Solving Ordinary Differential Equations II.
Stiff and Differential-Algebraic Problems, Springer-Verlag, 1991.
Springer Series in Comput. Mathematics, Vol. 14, 1991.
Second revised edition 1996.
Elliptic PDEs
John R. Rice and Ronald F. Boisvert,
Solving Elliptic Equations Using ELLPACK,
Springer-Verlag, 1985.
Benchmarks for Optimization Software by Hans Mittelmann
Optimization
Christodoulos A. Floudas, Handbook of Test Problems for Local and Global Optimization, Kluwer Academic Publishers, Dordrecht, 1999.