%0 Journal Article %A Yu. M. Krikunov %T A particular case of the equation $K(y)u_{xx}+\operatorname{sgn}(xy)K(x)u_{yy}=0$ %J Trudy seminara po kraevym zadačam %D 1975 %P 126-133 %V 12 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUKZ_1975_12_12_a15/ %G ru %F KUKZ_1975_12_12_a15