P. Van?k, J. Mandel, and M. Brezina, Algebraic multigrid based on smoothed aggregation for second and fourth order problems, Computing, pp.56-179, 1996.

J. Mandel, M. Brezina, and P. Van?k, Energy Optimization of Algebraic Multigrid Bases, Computing, vol.62, issue.3, pp.62-205, 1999.
DOI : 10.1007/s006070050022

M. Gee, C. Siefert, J. Hu, R. Tuminaro, and M. Sala, ML 5.0 smoothed aggregation user's guide, 2006.

M. Heroux, R. Bartlett, V. Howle, R. Hoekstra, J. Hu et al., An overview of the Trilinos project, ACM Transactions on Mathematical Software, vol.31, issue.3, pp.31-397, 2005.
DOI : 10.1145/1089014.1089021