%0 Journal Article
%A S. M. Nikol'skii
%A P. I. Lizorkin
%T Approximation by spherical polynomials
%J Informatics and Automation
%D 1984
%P 186-200
%V 166
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1984_166_a13/
%G ru
%F TRSPY_1984_166_a13