%0 Journal Article
%A N. I. Popivanov
%T A multidimensional analogue of the Darboux problem for degenerate hyperbolic equations
%J Differencialʹnye uravneniâ
%D 1978
%P 80-93
%V 14
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1978_14_1_a8/
%G ru
%F DE_1978_14_1_a8