@article{GDZPPN000462225,
title = {The Differential of a Quasi-conformal Mapping of a Carnot-Caratheodry Space.},
journal = {Geometric and functional analysis},
volume = {5},
year = {1995},
pages = {402-433},
zbl = {0910.30020},
url = {http://dml.mathdoc.fr/item/GDZPPN000462225}
}
Margulies, G.A.; Mostow, G.D. The Differential of a Quasi-conformal Mapping of a Carnot-Caratheodry Space.. Geometric and functional analysis, Tome 5 (1995) pp. 402-433. http://gdmltest.u-ga.fr/item/GDZPPN000462225/