@article{ZNSL_1994_217_a2,
     author = {A. B. Aleksandrov},
     title = {A~simple proof of a~theorem of {Volberg} and {Treil'} concerning imbeddings for coinvariant subspaces of the shift operator},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {26--35},
     publisher = {mathdoc},
     volume = {217},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1994_217_a2/}
}