%0 Journal Article %A A. L. Skubachevskii %A E. L. Tsvetkov %T The second boundary value problem for elliptic differential-difference equations %J Differencialʹnye uravneniâ %D 1989 %P 1766-1776 %V 25 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1989_25_10_a15/ %G ru %F DE_1989_25_10_a15