@article{FAA_1970_4_4_a9,
     author = {M. G. Krein and F. \'E. Melik-Adamyan},
     title = {Some applications of the theorem on factorization of a unitary matrix},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {73--75},
     publisher = {mathdoc},
     volume = {4},
     number = {4},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1970_4_4_a9/}
}