@Article{ Mag18, author = { Magnani, Valentino }, title = { Towards a theory of area in homogeneous groups }, journal = { Calc. Var. Partial Differential Equations }, year = { 2019 }, volume = { 58 }, number = { 3 }, pages = { 39 }, URL = { http://cvgmt.sns.it/paper/4079/ }, note = { cvgmt preprint} }