@Misc{ 
  IanMosSqu18,
  author = { Iannizzotto, Antonio and Mosconi, Sun-ra J. N. and Squassina, Marco },
  title = { Fine boundary regularity for the degenerate fractional $p$-Laplacian },
  journal = {  },
  year = { 2018 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3982/ },
  note = { cvgmt preprint}
}