@Misc{ 
  Pag17,
  author = { Pagliardini, Dayana },
  title = { Minimality via second variation for a functional involving fractional perimeter },
  journal = {  },
  year = { 2017 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3463/ },
  note = { cvgmt preprint}
}