%0 Journal Article
%A G. A. Ivashkina
%T On problems of Bicadze--Samarski{\v\i} type for the equation $U_{xx}+\operatorname{sgn}y|y|^mU_{yy}=0$ ($0
%J Differencialʹnye uravneniâ
%D 1981
%P 1078-1089
%V 17
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1981_17_6_a12/
%G ru
%F DE_1981_17_6_a12