## Groups with only normal and abnormal subgroups.(English)Zbl 0274.20022

### MSC:

 20D10 Finite solvable groups, theory of formations, Schunck classes, Fitting classes, $$\pi$$-length, ranks
Full Text:

### References:

 [1] Huppert, B, Endliche gruppen I, (1967), Springer-Verlag New York · Zbl 0217.07201
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