%0 Journal Article
%A Pierre H. Bérard
%T On the Wave Equation on a Compact Riemannian Manifold withour Conjugate Points.
%J Mathematische Zeitschrift
%D 1977
%P 249-276
%V 155
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1977__155_172561/
%F MZ_1977__155_172561