%0 Journal Article %A L. D. Kudryavtsev %T The solution of the first boundary-value problem for self-adjoint elliptic equations in the case of an unbounded region %J Izvestiya. Mathematics %D 1967 %P 1131-1151 %V 1 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1967_1_5_a12/ %G en %F IM2_1967_1_5_a12