@article{GDZPPN00241709X, title = {Some Generalized Characters of Finite Chevalley Groups.}, journal = {Mathematische Zeitschrift}, volume = {147}, year = {1976}, pages = {163-174}, zbl = {0306.20047}, url = {http://dml.mathdoc.fr/item/GDZPPN00241709X} }
Ballard, John W. Some Generalized Characters of Finite Chevalley Groups.. Mathematische Zeitschrift, Tome 147 (1976) pp. 163-174. http://gdmltest.u-ga.fr/item/GDZPPN00241709X/