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@article{DAN_1971_196_2_a0, author = {Ya. G. Berkovich}, title = {Subgroup and normal structure of a finite $p$-group}, journal = {Doklady Akademii Nauk}, pages = {255--258}, publisher = {mathdoc}, volume = {196}, number = {2}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_196_2_a0/} }
Ya. G. Berkovich. Subgroup and normal structure of a finite $p$-group. Doklady Akademii Nauk, Tome 196 (1971) no. 2, pp. 255-258. http://geodesic.mathdoc.fr/item/DAN_1971_196_2_a0/