1. P. Amestoy, T. A. Davis, and I. S. Duff. An approximate minimum degree ordering algorithm. SIAM J. Matrix Anal. Appl. 17(4):886–905, 1996.
2. C. Ashcraft, R. G. Grimes, and J. G. Lewis. Accurate symmetric indefinite linear equation solvers. SIAM J. Matrix Anal. Appl. 20:513–561, 1999.
3. C. Ashcraft and J. W. H. Liu. SMOOTH: A software package for ordering sparse matricesNovember 1996. http://www.cs.yorku.ca/joseph/SMOOTH.html
4. C. Ashcraft, D. Pierce, D. K. Wah, and J. Wu. The Reference Manual for SPOOLES, Release 2.2February 1999.
5. S. Balay, W. D. Gropp, L. C. McInnes, and B. F. Smith. Efficient management of parallelism in object-oriented numerical software libraries. In Modern Software Tools for Scientific Computing E. Arge, A. M. Bruaset, and H. P. Langtangen, (eds.), Birkhäuser, 1997.