%0 Journal Article
%A A. M. Nakhushev
%T The Darboux problem for hyperbolic equations
%J Doklady Akademii Nauk
%D 1970
%P 776-779
%V 195
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_195_4_a5/
%G ru
%F DAN_1970_195_4_a5