@article{GDZPPN00210685X,
title = {Convexity and unitary represenattions of nilpotent Lie groups.},
journal = {Inventiones mathematicae},
volume = {96},
year = {1989},
pages = {281-292},
zbl = {0684.22005},
url = {http://dml.mathdoc.fr/item/GDZPPN00210685X}
}
Wildberger, N.J. Convexity and unitary represenattions of nilpotent Lie groups.. Inventiones mathematicae, Tome 96 (1989) pp. 281-292. http://gdmltest.u-ga.fr/item/GDZPPN00210685X/