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@article{IVM_1972_3_a5, author = {E. M. Levich and G. I. Geideman}, title = {Triangulability of groups and rings}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {41--45}, publisher = {mathdoc}, number = {3}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1972_3_a5/} }
E. M. Levich; G. I. Geideman. Triangulability of groups and rings. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1972), pp. 41-45. http://geodesic.mathdoc.fr/item/IVM_1972_3_a5/