@article{1256053738,
author = {Thompson, John G.},
title = {Envelopes and $p$-signalizers of finite groups},
journal = {Illinois J. Math.},
volume = {13},
number = {4},
year = {1969},
pages = { 87-90},
language = {en},
url = {http://dml.mathdoc.fr/item/1256053738}
}
Thompson, John G. Envelopes and $p$-signalizers of finite groups. Illinois J. Math., Tome 13 (1969) no. 4, pp. 87-90. http://gdmltest.u-ga.fr/item/1256053738/