%0 Journal Article
%A P. I. Lizorkin
%T Classes of functions constructed on the basis of averages over spheres. (The case of spaces of Sobolev type)
%J Informatics and Automation
%D 1990
%P 122-139
%V 192
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1990_192_a10/
%G ru
%F TRSPY_1990_192_a10