%0 Journal Article
%A G. Gussi
%A V. Poénaru
%A C. Foias
%T Direct method in the Cauchy problem for a quasi-linear hyperbolic equation involving two independent variables
%J Doklady Akademii Nauk
%D 1957
%P 381-382
%V 112
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_112_3_a2/
%G ru
%F DAN_1957_112_3_a2