%0 Journal Article
%A V. V. Kucherenko
%A L. Yu. Motylev
%T A nonstrictly hyperbolic equation with nonsmooth characteristics
%J Doklady Akademii Nauk
%D 1984
%P 1056-1059
%V 276
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1984_276_5_a6/
%G ru
%F DAN_1984_276_5_a6