%0 Journal Article
%A L. N. Bondarenko
%A P. Ph. Zhuk
%T Accurate estimates for the speed of convergence of $s$-step iterative methods of variational type in a Hilbert space
%J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
%D 1997
%P 1301-1310
%V 37
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZVMMF_1997_37_11_a2/
%G ru
%F ZVMMF_1997_37_11_a2