@article{1183529841,
author = {Kamber, Franz},
title = {On the characteristic homomorphism of a discrete uniform subgroup of a nilpotent Lie group},
journal = {Bull. Amer. Math. Soc.},
volume = {74},
number = {6},
year = {1968},
pages = { 690-694},
language = {en},
url = {http://dml.mathdoc.fr/item/1183529841}
}
Kamber, Franz. On the characteristic homomorphism of a discrete uniform subgroup of a nilpotent Lie group. Bull. Amer. Math. Soc., Tome 74 (1968) no. 6, pp. 690-694. http://gdmltest.u-ga.fr/item/1183529841/