%0 Journal Article
%A Yu. M. Smirnov
%T First International Conference on Theory of Extensions
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1968
%V 23
%N 3
%U http://geodesic.mathdoc.fr/item/RM_1968_23_3_a18/
%G ru
%F RM_1968_23_3_a18