@article{DE_1981_17_4_a14,
     author = {I. M. Spitkovsky},
     title = {Factorization of measurable matrix-valued functions and related problems in the theory of systems of singular integral equations and the vector {Riemann} boundary},
     journal = {Differencialʹnye uravneni\^a},
     pages = {697--709},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_4_a14/}
}