%0 Journal Article
%A V. I. Ivanov
%T Direct and converse theorems of the theory of approximation in the metric of $L_p$ for $0
%J Matematičeskie zametki
%D 1975
%P 641-658
%V 18
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1975_18_5_a1/
%G ru
%F MZM_1975_18_5_a1