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@article{IVM_1968_8_a1, author = {Ya. G. Berkovich}, title = {A~condition which is necessary for a~group to coincide with the commutant.}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {11--17}, publisher = {mathdoc}, number = {8}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1968_8_a1/} }
Ya. G. Berkovich. A~condition which is necessary for a~group to coincide with the commutant.. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 8 (1968), pp. 11-17. http://geodesic.mathdoc.fr/item/IVM_1968_8_a1/