%0 Journal Article %A I. A. Danilova %T The third exterior boundary value problem for a second order elliptic equation.~II %J Differencialʹnye uravneniâ %D 1972 %P 486-493 %V 8 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_3_a10/ %G ru %F DE_1972_8_3_a10