%0 Journal Article
%A A. S. Romanyuk
%T Kolmogorov and trigonometric widths of the Besov classes $B^r_{p,\theta}$ of multivariate periodic functions
%J Sbornik. Mathematics
%D 2006
%P 69-93
%V 197
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_2006_197_1_a4/
%G en
%F SM_2006_197_1_a4