%0 Journal Article
%A N. I. Popivanov
%A M. Schneider
%T A boundary value problem for the nonlinear Tricomi equation in three dimensions
%J Differencialʹnye uravneniâ
%D 1991
%P 648-655
%V 27
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_4_a10/
%G ru
%F DE_1991_27_4_a10