@article{1183416908,
author = {Fite, W. B.},
title = {Concerning the class of a group of order $p^m$ that contains an operator of order $p^{m - 2}$
or $p^{m - 3}$, $p$ being a prime},
journal = {Bull. Amer. Math. Soc.},
volume = {9},
number = {3},
year = {1902},
pages = { 236-239},
language = {en},
url = {http://dml.mathdoc.fr/item/1183416908}
}
Fite, W. B. Concerning the class of a group of order $p^m$ that contains an operator of order $p^{m - 2}$
or $p^{m - 3}$, $p$ being a prime. Bull. Amer. Math. Soc., Tome 9 (1902) no. 3, pp. 236-239. http://gdmltest.u-ga.fr/item/1183416908/