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@article{IVM_1970_1_a3, author = {I. I. Volkov}, title = {Linear transformations of unbounded complex sequences}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {24--35}, publisher = {mathdoc}, number = {1}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1970_1_a3/} }
I. I. Volkov. Linear transformations of unbounded complex sequences. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 1 (1970), pp. 24-35. http://geodesic.mathdoc.fr/item/IVM_1970_1_a3/