@article{AGMS_2013_1_1_a3,
     author = {Barilari, Davide and Rizzi, Luca},
     title = {A {Formula} for {Popp{\textquoteright}s} {Volume} in {Sub-Riemannian} {Geometry}},
     journal = {Analysis and Geometry in Metric Spaces},
     pages = {42--57},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {2013},
     zbl = {1260.53062},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AGMS_2013_1_1_a3/}
}