@Misc{ 
  DeM20,
  author = { De Masi, Luigi },
  title = { Rectifiability of the free boundary for varifolds },
  journal = {  },
  year = { 2020 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5057/ },
  note = { cvgmt preprint}
}