1. Finite Groups;Gorenstein,1968
2. Endliche Gruppen. I;Huppert,1967
3. Character Ramification and M-groups;Price;Math. Zeitschrift,1973
4. On symplectic primitive modules and monomial groups;Waall;Indagationes Mathematicae,1976
5. On minimal symplectic groups;Waall;Indagationes Mathematicae,1977