%0 Journal Article
%A A. F. Timan
%T A problem in approximation theory related to the superposition of functions
%J Doklady Akademii Nauk
%D 1964
%P 274-275
%V 154
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1964_154_2_a8/
%G ru
%F DAN_1964_154_2_a8