%0 Journal Article %A F. S. Rofe-Beketov %T Selfadjoint extensions of differential operators in a space of vector-valued functions %J Doklady Akademii Nauk %D 1969 %P 1034-1037 %V 184 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_184_5_a3/ %G ru %F DAN_1969_184_5_a3