%0 Journal Article
%A V. I. Ivanov
%T Approximation in $L_p$ by polynomials in the Walsh system
%J Sbornik. Mathematics
%D 1989
%P 385-402
%V 62
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1989_62_2_a4/
%G en
%F SM_1989_62_2_a4