%0 Journal Article
%A V. A. Baskakov
%T The generalization of some theorems of P. P. Korovkin on positive operators
%J Matematičeskie zametki
%D 1973
%P 785-794
%V 13
%N 6
%U http://geodesic.mathdoc.fr/item/MZM_1973_13_6_a0/
%G ru
%F MZM_1973_13_6_a0