@article{GDZPPN002408228, title = {Defect Groups for Finite Groups of Lie Type.}, journal = {Mathematische Zeitschrift}, volume = {121}, year = {1971}, pages = {149-152}, zbl = {0198.04502}, url = {http://dml.mathdoc.fr/item/GDZPPN002408228} }
Humphreys, James E. Defect Groups for Finite Groups of Lie Type.. Mathematische Zeitschrift, Tome 121 (1971) pp. 149-152. http://gdmltest.u-ga.fr/item/GDZPPN002408228/