@article{01021593, title = {Optimal regularity for quasilinear equations in stratified nilpotent Lie groups and applications.}, journal = {Electronic Research Announcements of the American Mathematical Society [electronic only]}, volume = {02}, year = {1996}, pages = {60-68}, doi = {10.1090/S1079-6762-96-00009-1}, zbl = {0870.35019}, language = {en}, url = {http://dml.mathdoc.fr/item/01021593} }
Capogna, Luca. Optimal regularity for quasilinear equations in stratified nilpotent Lie groups and applications.. Electronic Research Announcements of the American Mathematical Society [electronic only], Tome 02 (1996) pp. 60-68. doi : 10.1090/S1079-6762-96-00009-1. http://gdmltest.u-ga.fr/item/01021593/