@article{ZNSL_2001_282_a2,
     author = {I. V. Videnskii},
     title = {On the zeros of the derivative of a~rational function and coinvariant subspaces for the shift operator on the {Bergman} space},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {26--33},
     publisher = {mathdoc},
     volume = {282},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2001_282_a2/}
}