@article{FAA_1974_8_2_a9,
     author = {V. M. Brodskii and M. S. Brodskii},
     title = {Factorizations of the characteristic function and invariant subspaces of a nonexpanding operator},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {63--64},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1974_8_2_a9/}
}