@article{05381063,
title = {Integral representations and the generalized Poincar\'e inequality on Carnot groups.},
journal = {Sibirskij Matematicheskij Zhurnal},
volume = {49},
year = {2008},
pages = {421-437},
zbl = {1164.46324},
language = {en},
url = {http://dml.mathdoc.fr/item/05381063}
}
Plotnikova, E.A. Integral representations and the generalized Poincaré inequality on Carnot groups.. Sibirskij Matematicheskij Zhurnal, Tome 49 (2008) pp. 421-437. http://gdmltest.u-ga.fr/item/05381063/