@Misc{ 
  CarDipVal19,
  author = { Carbotti, Alessandro and Dipierro, Serena and Valdinoci, Enrico },
  title = { Local density of Solutions to Fractional Equations },
  journal = {  },
  year = { 2019 },
  doi = { 10.1515/9783110664355 },
  volume = { 74 },
  pages = { 129 },
  URL = { http://cvgmt.sns.it/paper/5167/ },
  note = { cvgmt preprint}
}