@article{GDZPPN002096420,
title = {On the Unipotent Characters of the Exceptional Groups Over Finite Fields.},
journal = {Inventiones mathematicae},
volume = {56},
year = {1980},
pages = {173-192},
zbl = {0443.20036},
url = {http://dml.mathdoc.fr/item/GDZPPN002096420}
}
Lusztig, George. On the Unipotent Characters of the Exceptional Groups Over Finite Fields.. Inventiones mathematicae, Tome 56 (1980) pp. 173-192. http://gdmltest.u-ga.fr/item/GDZPPN002096420/