%0 Journal Article
%A B. E. Klots
%T Best linear and nonlinear approximations for smooth functions
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1978
%P 15-24
%V 12
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1978_12_1_a1/
%G ru
%F FAA_1978_12_1_a1