@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/}
}