@article{FAA_1968_2_4_a0,
     author = {V. M. Adamyan and D. Z. Arov and M. G. Krein},
     title = {Infinite {Hankel} matrices and generalized {Caretheodory--Fejer} and {I.} {Schur} {Problems}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {1--17},
     publisher = {mathdoc},
     volume = {2},
     number = {4},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1968_2_4_a0/}
}