1. A generalized SSOR method;Axelsson;BIT,1972
2. On preconditioning and convergence acceleration in sparse matrix problems;Axelsson,1974
3. Solution of large systems of equations: iterative methods;Axelsson,1977
4. A general incomplete block-matrix factorization method;Axelsson;Linear Algebra Appl.,1986
5. Preconditioning methods for block H-matrices;Axelsson,1991