%0 Journal Article
%A G. Karatoprakliev
%T On a generalization of the $T$-problem for the equation $u_{xx}+\operatorname{sign}yu_{yy}=0$
%J Doklady Akademii Nauk
%D 1963
%P 1271-1273
%V 151
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_151_6_a7/
%G ru
%F DAN_1963_151_6_a7