@article{1103038234,
author = {Hobby, Charles},
title = {A characteristic subgroup of a $p$-group.},
journal = {Pacific J. Math.},
volume = {10},
number = {4},
year = {1960},
pages = { 853-858},
language = {en},
url = {http://dml.mathdoc.fr/item/1103038234}
}
Hobby, Charles. A characteristic subgroup of a $p$-group.. Pacific J. Math., Tome 10 (1960) no. 4, pp. 853-858. http://gdmltest.u-ga.fr/item/1103038234/