%0 Journal Article
%A V. N. Gol'dberg
%T The question whether nonlinear mixed problems for almost linear hyperbolic systems in the plane are well posed
%J Differencialʹnye uravneniâ
%D 1973
%P 1831-1844
%V 9
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1973_9_10_a10/
%G ru
%F DE_1973_9_10_a10