1. Products of Conjugacy Classes in Groups;Arad,1985
2. Groupes et algèbres de Lie IV, V, VI;Bourbaki,1968
3. Simple Groups of Lie Type;Carter,1989
4. Finite Groups of Lie Type;Carter,1993
5. Gauss decomposition with prescribed semisimple part in Chevalley groups;Ellers;Comm. Algebra,1994