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@article{DAN_1977_234_2_a6, author = {M. G. Krein and I. M. Spitkovsky}, title = {On factorization of matrix-valued functions on the unit circle}, journal = {Doklady Akademii Nauk}, pages = {287--290}, publisher = {mathdoc}, volume = {234}, number = {2}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1977_234_2_a6/} }
M. G. Krein; I. M. Spitkovsky. On factorization of matrix-valued functions on the unit circle. Doklady Akademii Nauk, Tome 234 (1977) no. 2, pp. 287-290. http://geodesic.mathdoc.fr/item/DAN_1977_234_2_a6/