1. On the Theory of Fitting Classes of Finite Groups;Brison,1978
2. Classes of finite soluble groups;Cossey,1973
3. On metanilpotent Fitting classes;Hawkes;J. Algebra,1980
4. Endliche Gruppen I;Huppert,1967
5. The Fitting class J∗;Lockett;Math. Z.,1974