%0 Journal Article %A B. Yu. Sternin %A V. E. Shatalov %T A class of nonlocal elliptic problems %J Doklady Akademii Nauk %D 1992 %P 245-249 %V 323 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1992_323_2_a11/ %G ru %F DAN_1992_323_2_a11