%0 Journal Article %A A. L. Skubachevskii %T Nonlocal elliptic problems with a~parameter %J Sbornik. Mathematics %D 1984 %P 197-206 %V 49 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1984_49_1_a11/ %G en %F SM_1984_49_1_a11