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@article{IVM_1983_8_a11, author = {O. I. Soibel'man}, title = {Perturbations of a~weighted shift operator}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {60--63}, publisher = {mathdoc}, number = {8}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1983_8_a11/} }
O. I. Soibel'man. Perturbations of a~weighted shift operator. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1983), pp. 60-63. http://geodesic.mathdoc.fr/item/IVM_1983_8_a11/