@article{1256053182,
author = {Schenkman, Eugene},
title = {The number of Hall $\pi$-subgroups of a finite group},
journal = {Illinois J. Math.},
volume = {14},
number = {4},
year = {1970},
pages = { 241-243},
language = {en},
url = {http://dml.mathdoc.fr/item/1256053182}
}
Schenkman, Eugene. The number of Hall $\pi$-subgroups of a finite group. Illinois J. Math., Tome 14 (1970) no. 4, pp. 241-243. http://gdmltest.u-ga.fr/item/1256053182/