@Article{ BelNov0, author = { Bellettini, Giovanni and Novaga, Matteo }, title = { Approximation and comparison for non-smooth anisotropic motion by mean curvature in $\mathbb R^N$ }, journal = { Math. Mod. Meth. Appl. Sc. }, year = { 2000 }, volume = { 10 }, number = { 1 }, pages = { 1-10 }, URL = { http://cvgmt.sns.it/paper/3413/ }, note = { cvgmt preprint} }