%0 Journal Article
%A Friedlander, F. G.
%T A unique continuation theorem for the wave equation in the exterior of a characteristic cone
%J Séminaire Goulaouic-Schwartz
%Z talk:2
%D 1982-1983
%P 1-10
%I Ecole Polytechnique, Centre de Mathématiques
%U https://www.numdam.org/item/SEDP_1982-1983____A2_0/
%G en
%F SEDP_1982-1983____A2_0