%0 Journal Article
%A È. M. Galeev
%T Linear widths of classes of periodic functions of several variables
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1987
%P 13-16
%N 4
%U http://geodesic.mathdoc.fr/item/VMUMM_1987_4_a2/
%G ru
%F VMUMM_1987_4_a2