@article{ZNSL_1987_157_a9,
     author = {D. V. Yakubovich},
     title = {Similar models of {Toeplitz} operators},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {113--123},
     year = {1987},
     volume = {157},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1987_157_a9/}
}