%0 Journal Article
%A P. E. Sobolevskii
%T On the $s$-numbers of integral operators
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1967
%V 22
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1967_22_2_a14/
%G ru
%F RM_1967_22_2_a14