@Misc{ 
  MoPeSqYa15,
  author = { Mosconi, Sun-ra J. N. and Perera, Kanishka and Squassina, Marco and Yang, Yang },
  title = { The Brezis-Nirenberg problem for the fractional p-Laplacian },
  journal = {  },
  year = { 2015 },
  pages = { 24 },
  URL = { http://cvgmt.sns.it/paper/2760/ },
  note = { cvgmt preprint}
}