%0 Journal Article
%A M. B. Kapilevich
%T Singular Goursat problems in a neighborhood of a singular characteristic at zero and at infinity
%J Doklady Akademii Nauk
%D 1961
%P 1287-1290
%V 137
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1961_137_6_a7/
%G ru
%F DAN_1961_137_6_a7