%0 Journal Article
%A V. I. Ivanov
%T Approximation in $L_p$ by means of piecewise-constant functions
%J Matematičeskie zametki
%D 1988
%P 64-79
%V 44
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_1988_44_1_a6/
%G ru
%F MZM_1988_44_1_a6