%0 Journal Article
%A S. G. Mikhlin
%T Some approximation problems in the variational-difference method
%J Doklady Akademii Nauk
%D 1973
%P 299-301
%V 209
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_209_2_a9/
%G ru
%F DAN_1973_209_2_a9