M. Galli, M. Ritoré: Regularity of $C^1$ surfaces with prescribed mean curvature in three-dimensional contact sub-Riemannian manifolds Calc. Var. PDE (Accepted Paper) 2015 M. Galli: The regularity of Euclidean Lipschitz boundaries with prescribed mean curvature in three-dimensional contact sub-Riemannian manifolds Nonlinear Analysis Series A: Theory, Methods & Applications (Accepted Paper) 2016