%0 Journal Article
%A V. M. Mordashev
%T On a linear combination of functions of several variables best approximated by a sum of functions of a smaller number of variables
%J Doklady Akademii Nauk
%D 1971
%P 290
%V 198
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_198_2_a8/
%G ru
%F DAN_1971_198_2_a8