%0 Journal Article %A L. A. Kalyakin %T The first boundary value problem for elliptic equations in an unbounded domain %J Differencialʹnye uravneniâ %D 1974 %P 1684-1691 %V 10 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1974_10_9_a13/ %G ru %F DE_1974_10_9_a13