%0 Journal Article
%A V. M. Mordashev
%T Best approximations of functions of several variables by sums of functions of fewer variables
%J Matematičeskie zametki
%D 1969
%P 217-226
%V 5
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1969_5_2_a8/
%G ru
%F MZM_1969_5_2_a8