@article{GDZPPN002407841,
title = {Generalizations of the Classes of Nilpotent and Hypercentral Groups.},
journal = {Mathematische Zeitschrift},
volume = {114},
year = {1970},
pages = {180-190},
zbl = {0194.03603},
url = {http://dml.mathdoc.fr/item/GDZPPN002407841}
}
Stanley, Terence E. Generalizations of the Classes of Nilpotent and Hypercentral Groups.. Mathematische Zeitschrift, Tome 114 (1970) pp. 180-190. http://gdmltest.u-ga.fr/item/GDZPPN002407841/