%0 Journal Article
%A M. G. Gasratov
%T A mixed problem of Riquier type for a hyperbolic equation
%J Differencialʹnye uravneniâ
%D 1978
%P 1235-1244
%V 14
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1978_14_7_a10/
%G ru
%F DE_1978_14_7_a10