%0 Journal Article %A Yu. F. Korobeǐnik %T On the application of the theory of perturbations of normally solvable operators to some classes of operators in a complex domain %J Vladikavkazskij matematičeskij žurnal %D 2005 %P 64-77 %V 7 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMJ_2005_7_2_a6/ %G ru %F VMJ_2005_7_2_a6