@article{1103036133, author = {Hobby, Charles}, title = {Abelian subgroups of $p$-groups.}, journal = {Pacific J. Math.}, volume = {12}, number = {4}, year = {1962}, pages = { 1343-1345}, language = {en}, url = {http://dml.mathdoc.fr/item/1103036133} }
Hobby, Charles. Abelian subgroups of $p$-groups.. Pacific J. Math., Tome 12 (1962) no. 4, pp. 1343-1345. http://gdmltest.u-ga.fr/item/1103036133/