%0 Journal Article
%A A. G. Babenko
%A Yu. V. Kryakin
%T Integral approximation of the characteristic function of an interval by trigonometric polynomials
%J Trudy Instituta matematiki i mehaniki
%D 2008
%P 19-37
%V 14
%N 3
%U http://geodesic.mathdoc.fr/item/TIMM_2008_14_3_a1/
%G ru
%F TIMM_2008_14_3_a1