@article{GDZPPN002425998, title = {Nilpotent Groups of Hirsch Length Six.}, journal = {Mathematische Zeitschrift}, volume = {180}, year = {1982}, pages = {219-236}, zbl = {0497.20026}, url = {http://dml.mathdoc.fr/item/GDZPPN002425998} }
Segal, D.; Grunewald, F.J.; Sterling, L.S. Nilpotent Groups of Hirsch Length Six.. Mathematische Zeitschrift, Tome 180 (1982) pp. 219-236. http://gdmltest.u-ga.fr/item/GDZPPN002425998/