%0 Journal Article
%A O. Axelsson
%A P.S. Vassilevski
%T Algebraic Multi Level Preconditioning Methods. I.
%J Numerische Mathematik
%D 1989
%P 157-178
%V 56
%N 2-3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1989__56_2-3_133390/
%F NUMA_1989__56_2-3_133390