%0 Journal Article
%A V. È. Gheit
%T On the exactness of certain inequalities in approximation theory
%J Matematičeskie zametki
%D 1971
%P 571-582
%V 10
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1971_10_5_a12/
%G ru
%F MZM_1971_10_5_a12