@article{PPN481110151_0003+dmdlog30,
title = {On the Structure of the Normal Subgroups of a Group: Nilpotency.},
journal = {Forum mathematicum},
volume = {3},
year = {1991},
pages = {581-594},
zbl = {0759.20011},
url = {http://dml.mathdoc.fr/item/PPN481110151_0003+dmdlog30}
}
BEIDLEMAN, J.C.; ROBINSON, D.J.S. On the Structure of the Normal Subgroups of a Group: Nilpotency.. Forum mathematicum, Tome 3 (1991) pp. 581-594. http://gdmltest.u-ga.fr/item/PPN481110151_0003+dmdlog30/