@article{1087575412,
author = {Gille, Philippe},
title = {Unipotent subgroups of reductive groups in characteristic $p > 0$},
journal = {Duke Math. J.},
volume = {115},
number = {1},
year = {2002},
pages = { 307-328},
language = {en},
url = {http://dml.mathdoc.fr/item/1087575412}
}
Gille, Philippe. Unipotent subgroups of reductive groups in characteristic $p > 0$. Duke Math. J., Tome 115 (2002) no. 1, pp. 307-328. http://gdmltest.u-ga.fr/item/1087575412/