%0 Journal Article
%A M. R. Langarshoev
%T Sharp inequality of Jackson--Stechkin type and widths of functional classes in the space $L_2$
%J Eurasian mathematical journal
%D 2014
%P 122-134
%V 5
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/EMJ_2014_5_1_a4/
%G en
%F EMJ_2014_5_1_a4