%0 Journal Article
%A Marina V. Deikalova
%A Anastasiya Yu. Torgashova
%T One-sided $L$-approximation on a sphere of the characteristic function of a layer
%J Ural mathematical journal
%D 2018
%P 13-23
%V 4
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/UMJ_2018_4_2_a2/
%G en
%F UMJ_2018_4_2_a2