@article{02218550,
title = {Poincar\'e inequalities for the Heisenberg group target.},
journal = {JIPAM. Journal of Inequalities in Pure \& Applied Mathematics [electronic only]},
volume = {6},
year = {2005},
zbl = {1075.22004},
language = {en},
url = {http://dml.mathdoc.fr/item/02218550}
}
Jia, Gao. Poincaré inequalities for the Heisenberg group target.. JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only], Tome 6 (2005) . http://gdmltest.u-ga.fr/item/02218550/