@Article{ belcascha07, author = { Bellettini, Giovanni and Caselles, Vicent and Chambolle, Antonin and Novaga, Matteo }, title = { The volume preserving crystalline mean curvature flow of convex sets in $\mathbf R^N$ }, journal = { J. Math. Pures Appl. }, year = { 2009 }, volume = { 92 }, number = { 5 }, pages = { 499-527 }, URL = { http://cvgmt.sns.it/paper/770/ }, note = { cvgmt preprint} }