@Article{ DonMasVit17, author = { Don, Sebastiano and Massaccesi, Annalisa and Vittone, Davide }, title = { Rank-one theorem and subgraphs of BV functions in Carnot groups }, journal = { J. Funct. Anal. }, year = { 2019 }, doi = { http://dx.doi.org/10.1016/j.jfa.2018.09.016 }, volume = { 276 }, pages = { 687–715 }, URL = { http://cvgmt.sns.it/paper/3685/ }, note = { cvgmt preprint} }