%0 Journal Article
%A L. Yu. Kolotilina
%T Eigenvalue bounds for block preconditioned matrices
%J Zapiski Nauchnykh Seminarov POMI
%D 1994
%P 5-41
%V 219
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1994_219_a0/
%G ru
%F ZNSL_1994_219_a0