1. Products of Conjugacy Classes in Groups;Arad,1986
2. M. Aschbacher, S.Smith, Quasithin groups, preprint, about 1400 pages
3. On the modular characters of groups;Brauer;Ann. of Math.,1941
4. Atlas of Finite Groups;Conway,1985
5. Perspectivities of odd order and Chevalley groups;Dempwolff;J. Geom.,1992