%0 Journal Article
%A S. M. Nikol'skii
%T Approximation of functions by trigonometric polynomials on a manifold.~I
%J Doklady Akademii Nauk
%D 1991
%P 1313-1317
%V 319
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1991_319_6_a6/
%G ru
%F DAN_1991_319_6_a6