1. Sporadic Groups;Aschbacher,1994
2. M. Aschbacher, S.D. Smith, http://www.math.uic.edu/~smiths/papers/quasi-thin, in preparation
3. Atlas of Finite Groups;Conway,1985
4. Solvability of groups of odd order;Feit;Pacific J. Math.,1963
5. The Local Structure of Finite Groups of Characteristic 2 Type;Gorenstein,1983