@article{1256054561,
author = {Alperin, J. L. and Kuo, Tzee-Nan},
title = {The exponent and the projective representations of a finite group},
journal = {Illinois J. Math.},
volume = {11},
number = {4},
year = {1967},
pages = { 410-413},
language = {en},
url = {http://dml.mathdoc.fr/item/1256054561}
}
Alperin, J. L.; Kuo, Tzee-Nan. The exponent and the projective representations of a finite group. Illinois J. Math., Tome 11 (1967) no. 4, pp. 410-413. http://gdmltest.u-ga.fr/item/1256054561/