%0 Journal Article
%A S. B. Vakarchuk
%A V. I. Zabutnaya
%T Inequalities between Best Polynomial Approximations and Some Smoothness Characteristics in the Space~$L_2$ and Widths of Classes of Functions
%J Matematičeskie zametki
%D 2016
%P 215-238
%V 99
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZM_2016_99_2_a5/
%G ru
%F MZM_2016_99_2_a5