@article{ZNSL_1976_65_a4,
     author = {S. N. Naboko},
     title = {Absolutely continuous spectrum of the nondissipative operator and the functional modell},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {90--102},
     year = {1976},
     volume = {65},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1976_65_a4/}
}