%0 Journal Article
%A V. V. Zhuk
%T Certain inequalities between best approximations of periodic functions
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1973
%P 18-26
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1973_9_a2/
%G ru
%F IVM_1973_9_a2