%0 Journal Article %A A. L. Skubachevskii %T Model nonlocal problems for elliptic equations in dihedral angles %J Differencialʹnye uravneniâ %D 1990 %P 120-131 %V 26 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_1_a14/ %G ru %F DE_1990_26_1_a14