@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/