%0 Journal Article
%A M. V. Gorelova
%A E. V. Chizhonkov
%T On the preconditioning of saddle problems by means of saddle operators
%J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
%D 2004
%P 1523-1533
%V 44
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZVMMF_2004_44_9_a0/
%G ru
%F ZVMMF_2004_44_9_a0