11.
Y. Saad, Iterative Methods for Sparse Linear Systems, Boston, 1996.
18.
W. Hackbusch, Multi-grid Methods and Applications, Springer-Verlag, Berlin, 1985.
28.
H.M Bücker, A transpose-free 1-norm quasi-minimal residual algorithm for non-Hermitian linear systems, FZJ-ZAM-IB-9706.
29.
K. Stüben, Algebraic Multigrid (AMG): An Introduction with Applications, GMD Report 70, GMD, 1999.
30.
C. Wagner, Introduction to Algebraic Multigrid, course notes, University of Heidelberg, 1999.