@article{AIHPC_2015__32_5_925_0,
     author = {Bigolin, F. and Caravenna, L. and Serra Cassano, F.},
     title = {Intrinsic {Lipschitz} graphs in {Heisenberg} groups and continuous solutions of a balance equation},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {925--963},
     publisher = {Elsevier},
     volume = {32},
     number = {5},
     year = {2015},
     doi = {10.1016/j.anihpc.2014.05.001},
     mrnumber = {3400438},
     zbl = {1331.35089},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.anihpc.2014.05.001/}
}