%0 Journal Article %A M. S. Salakhitdinov %A A. K. Urinov %T A nonlocal boundary value problem in a doubly connected domain for %J Doklady Akademii Nauk %D 1988 %P 63-66 %V 299 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_299_1_a13/ %G ru %F DAN_1988_299_1_a13