%0 Journal Article
%A M. D. Kovalev
%T A characteristic property of a disc
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1980
%P 124-137
%V 152
%U http://geodesic.mathdoc.fr/item/TM_1980_152_a6/
%G ru
%F TM_1980_152_a6