%0 Journal Article %A S. M. Nikol'skii %A P. I. Lizorkin %T Approximation theory on the sphere %J Informatics and Automation %D 1985 %P 272-279 %V 172 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1985_172_a18/ %G ru %F TRSPY_1985_172_a18