@Misc{ 
  BonMor13,
  author = { Bonacini, Marco and Morini, Massimiliano },
  title = { Stable regular critical points of the Mumford-Shah functional are local minimizers },
  journal = { Ann. Inst. H. Poincaré Anal. Non Linéaire },
  year = { 2014 },
  doi = { 10.1016/j.anihpc.2014.01.006 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/2213/ },
  note = { cvgmt preprint}
}