@article{GDZPPN002389320,
title = {The tensor product and the 2nd nilpotent product of groups.},
journal = {Mathematische Zeitschrift},
volume = {73},
year = {1960},
pages = {134-145},
zbl = {0121.27002},
url = {http://dml.mathdoc.fr/item/GDZPPN002389320}
}
MacHenry, Trueman. The tensor product and the 2nd nilpotent product of groups.. Mathematische Zeitschrift, Tome 73 (1960) pp. 134-145. http://gdmltest.u-ga.fr/item/GDZPPN002389320/