%0 Journal Article
%A N. A. Sapogov
%T Adding strength to Lizinskii--Harsiladze's theorem on polynomial approximations
%J Doklady Akademii Nauk
%D 1962
%P 53-55
%V 143
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1962_143_1_a13/
%G ru
%F DAN_1962_143_1_a13