@Article{ 
  morneg01,
  author = { Morini, Massimiliano and Negri, Matteo },
  title = { Mumford-Shah functional as $\Gamma$-limit of discrete Perona-Malik energies },
  journal = { Math. Models Methods Appl. Sci. },
  year = { 2003 },
  volume = { 13 },
  pages = { 785-805 },
  URL = { http://cvgmt.sns.it/paper/1039/ },
  note = { cvgmt preprint}
}