@Misc{ 
  Car18,
  author = { Carioni, Marcello },
  title = { Existence of calibrations for the Mumford-Shah functional and the reinitialization of the distance function in the framework of Chan and Vese algorithms },
  journal = {  },
  year = { 2017 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3983/ },
  note = { cvgmt preprint}
}