%0 Journal Article %A S. N. Naboko %T Absolutely continuous spectrum of the nondissipative operator and the functional modell %J Zapiski Nauchnykh Seminarov POMI %D 1976 %P 90-102 %V 65 %U http://geodesic.mathdoc.fr/item/ZNSL_1976_65_a4/ %G ru %F ZNSL_1976_65_a4