@Article{ belmar, author = { Bellettini, Giovanni and March, Riccardo }, title = { An image segmentation variational model with free discontinuities and contour curvature }, journal = { Math. Mod. Meth. Appl. Sci. }, year = { 2004 }, volume = { 14 }, pages = { 1-45 }, URL = { http://cvgmt.sns.it/paper/1618/ }, note = { cvgmt preprint} }