%0 Journal Article
%A M. M. Lavrent'ev
%T Evolution equations and the Goursat problem for a telegraph
%J Doklady Akademii Nauk
%D 1989
%P 38-41
%V 308
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1989_308_1_a7/
%G ru
%F DAN_1989_308_1_a7