%0 Journal Article
%A P. E. Sobolevskii
%A S. M. Semenov
%T On an approach to the investigation of degenerate hyperbolic equations
%J Doklady Akademii Nauk
%D 1983
%P 555-558
%V 270
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1983_270_3_a9/
%G ru
%F DAN_1983_270_3_a9