%0 Journal Article
%A Yu. M. Krikunov
%T A boundary value problem for the equation $u_{xx}+\operatorname{sgn}(xy)u_{yy}=0$
%J Trudy seminara po kraevym zadačam
%D 1974
%P 100-106
%V 11
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/KUKZ_1974_11_11_a12/
%G ru
%F KUKZ_1974_11_11_a12