%0 Journal Article %A A. G. Baskakov %T An Abstract Analog of the Krylov--Bogolyubov Transformation in the Perturbation Theory of Linear Operators %J Funkcionalʹnyj analiz i ego priloženiâ %D 1999 %P 76-80 %V 33 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1999_33_2_a7/ %G ru %F FAA_1999_33_2_a7