%0 Journal Article
%A V. T. Shevaldin
%T Lower bounds on widths of classes of sourcewise representable functions
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1989
%P 185-200
%V 189
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1989_189_a9/
%G ru
%F TM_1989_189_a9