@article{AGMS_2014_2_1_a8,
     author = {Franchi, Bruno and Marchi, Marco and Serapioni, Raul Paolo},
     title = {Differentiability and {Approximate} {Differentiability} for {Intrinsic} {Lipschitz} {Functions} in {Carnot} {Groups} and a {Rademacher} {Theorem}},
     journal = {Analysis and Geometry in Metric Spaces},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {2014},
     zbl = {1307.22007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AGMS_2014_2_1_a8/}
}