@article{ZNSL_1977_73_a1,
     author = {V. I. Vasyunin},
     title = {Construction of the functional model of {B.~S.--Nagy--C.~Foias}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {16--23},
     publisher = {mathdoc},
     volume = {73},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_73_a1/}
}