%0 Journal Article
%T Meetings of the Leningrad Mathematical Society
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1967
%V 22
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1967_22_1_a23/
%G ru
%F RM_1967_22_1_a23