@Article{ caschanov07, author = { Caselles, Vicent and Chambolle, Antonin and Novaga, Matteo }, title = { The discontinuity set of solutions of the TV denoising problem and some extensions }, journal = { Multiscale Modeling and Simulation }, year = { 2007 }, volume = { 6 }, number = { 3 }, pages = { 879-894 }, URL = { http://cvgmt.sns.it/paper/1343/ }, note = { cvgmt preprint} }