1. Iterative Solution Methods;Axelsson,1994
2. Preconditioning for boundary value problems using elementwise Schur complements;Axelsson;SIAM J. Matrix Anal. Appl.,2009
3. O. Axelsson, R. Blaheta, M. Neytcheva, A black-box generalized conjugate gradient minimum residual method based on variable preconditioners and local element approximations, TR 2007-033, Institute for Information Technology, Uppsala University, 2007.
4. Multilevel preconditioning for perturbed finite element matrices;Axelsson;IMA J. Numer. Anal.,1997
5. Eigenvalue estimates for preconditioned saddle point matrices;Axelsson;Numer. Linear Algebra Appl.,2006