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@article{DAN_1967_175_4_a3, author = {S. I. Osipov}, title = {The transformation of operator sums}, journal = {Doklady Akademii Nauk}, pages = {762--763}, publisher = {mathdoc}, volume = {175}, number = {4}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1967_175_4_a3/} }
S. I. Osipov. The transformation of operator sums. Doklady Akademii Nauk, Tome 175 (1967) no. 4, pp. 762-763. http://geodesic.mathdoc.fr/item/DAN_1967_175_4_a3/