%0 Journal Article
%A V. M. Tikhomirov
%T Widths and entropy
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1983
%P 101-111
%V 38
%N 4
%U http://geodesic.mathdoc.fr/item/RM_1983_38_4_a6/
%G en
%F RM_1983_38_4_a6