%0 Journal Article
%A A. V. Bitsadze
%A A. M. Nakhushev
%T Theory of degenerate hyperbolic equations in multidimensional domains
%J Doklady Akademii Nauk
%D 1972
%P 1289-1291
%V 204
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1972_204_6_a1/
%G ru
%F DAN_1972_204_6_a1