%0 Journal Article
%A I. M. Karasev
%T The first boundary value problem for an equation with nonnegative characteristic form in the spaces

%J Doklady Akademii Nauk
%D 1976
%P 38-39
%V 226
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1976_226_1_a7/
%G ru
%F DAN_1976_226_1_a7