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@article{IVM_1973_9_a1, author = {Ya. G. Berkovich}, title = {Subgroups of finite $p$-groups}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {9--17}, publisher = {mathdoc}, number = {9}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1973_9_a1/} }
Ya. G. Berkovich. Subgroups of finite $p$-groups. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 9 (1973), pp. 9-17. http://geodesic.mathdoc.fr/item/IVM_1973_9_a1/