@article{GDZPPN002340496, title = {Compensated compactness and the Heisenberg group.}, journal = {Mathematische Annalen}, volume = {302}, year = {1995}, pages = {601-612}, zbl = {0900.43001}, url = {http://dml.mathdoc.fr/item/GDZPPN002340496} }
Grafakos, Loukas; Rochberg, Richard. Compensated compactness and the Heisenberg group.. Mathematische Annalen, Tome 302 (1995) pp. 601-612. http://gdmltest.u-ga.fr/item/GDZPPN002340496/