%0 Journal Article
%A M. Sh. Shabozov
%T Some problems of approximation of periodic functions by trigonometric polynomials in $L_2$
%J Čebyševskij sbornik
%D 2019
%P 385-398
%V 20
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CHEB_2019_20_4_a24/
%G ru
%F CHEB_2019_20_4_a24