%0 Journal Article
%A S. K. Kumykova
%T A boundary value problem for a degenerate hyperbolic equation in a characteristic crescent
%J Differencialʹnye uravneniâ
%D 1979
%P 79-91
%V 15
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1979_15_1_a10/
%G ru
%F DE_1979_15_1_a10