%0 Journal Article
%A M.-B. Babayev
%T Approximation of Sobolev classes of functions by sums of products of functions of fewer variables
%J Matematičeskie zametki
%D 1990
%P 10-21
%V 48
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1990_48_6_a1/
%G ru
%F MZM_1990_48_6_a1