@article{MAT_1959_3_3_a2,
     author = {M. Rosenblum},
     title = {Perturbation of the continuous spectrum and unitary equivalence},
     journal = {Matematika},
     pages = {57--68},
     publisher = {mathdoc},
     volume = {3},
     number = {3},
     year = {1959},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1959_3_3_a2/}
}