%0 Journal Article %A V. A. Trenogin %T Boundary value problems for abstract elliptic equations %J Doklady Akademii Nauk %D 1966 %P 1028-1031 %V 170 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_170_5_a9/ %G ru %F DAN_1966_170_5_a9