@article{GDZPPN002418126, title = {More Normal Fitting Classes of Finite Solvable Groups.}, journal = {Mathematische Zeitschrift}, volume = {147}, year = {1976}, pages = {1-4}, zbl = {0319.20023}, url = {http://dml.mathdoc.fr/item/GDZPPN002418126} }
Berger, Thomas R. More Normal Fitting Classes of Finite Solvable Groups.. Mathematische Zeitschrift, Tome 147 (1976) pp. 1-4. http://gdmltest.u-ga.fr/item/GDZPPN002418126/