%0 Journal Article
%A Mitsuru Sugimoto
%T Estimates for hyperbolic equations with non-convex characteristics.
%J Mathematische Zeitschrift
%D 1996
%P 521-532
%V 222
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1996__222_3_174899/
%F MZ_1996__222_3_174899