%0 Journal Article %A Yu. F. Korobeinik %T Some applications of the theory of normally solvable operators to %J Sbornik. Mathematics %D 1967 %P 1-29 %V 1 %N 1 %U http://geodesic.mathdoc.fr/item/SM_1967_1_1_a0/ %G en %F SM_1967_1_1_a0