%0 Journal Article %A J. V. Rybalov %T Boundary value problems in a half space with a boundary condition at a point %J Differencialʹnye uravneniâ %D 1983 %P 834-845 %V 19 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_5_a8/ %G ru %F DE_1983_19_5_a8