%0 Journal Article
%A A. G. Babenko
%A Yu. V. Kryakin
%A V. A. Yudin
%T One-sided approximation in~$L$ of the characteristic function of an interval by trigonometric polynomials
%J Trudy Instituta matematiki i mehaniki
%D 2012
%P 82-95
%V 18
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TIMM_2012_18_1_a6/
%G ru
%F TIMM_2012_18_1_a6