%0 Journal Article
%A A. V. Sobolev
%T A certain class of positive linear operators in topological linear spaces
%J Doklady Akademii Nauk
%D 1973
%P 305-307
%V 212
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_212_2_a9/
%G ru
%F DAN_1973_212_2_a9