%0 Journal Article
%A I. B. Erunova
%A V. Ya. Rivkind
%T Estimates for the rate of convergence of approximate methods for
%J Doklady Akademii Nauk
%D 1990
%P 1306-1309
%V 313
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1990_313_6_a5/
%G ru
%F DAN_1990_313_6_a5