@Misc{ 
  PonSpe17a,
  author = { Ponce, Augusto and Spector, Daniel },
  title = { A note on the Fractional Perimeter and Interpolation },
  journal = {  },
  year = { 2017 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3522/ },
  note = { cvgmt preprint}
}