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@article{IVM_1991_7_a7, author = {A. \`E. Pasenchuk}, title = {Innvertibility of abstract {Toeplitz} operators in countably normed spaces}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {49--57}, publisher = {mathdoc}, number = {7}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1991_7_a7/} }
A. È. Pasenchuk. Innvertibility of abstract Toeplitz operators in countably normed spaces. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 7 (1991), pp. 49-57. http://geodesic.mathdoc.fr/item/IVM_1991_7_a7/