@article{2002-kantor ,note={URL: {\tt http://dx.doi.org/10.1006/jabr.2001.9016}} ,author={William M. Kantor and \'Akos Seress} ,journal={Journal of Algebra} ,MR={2003a:20026} ,pages={370--434} ,title={{Prime power graphs for groups of Lie type}} ,volume={247} ,year={2002} }