@Misc{ 
  AmbEss23,
  author = { Ambrosio, Vincenzo and Essebei, Fares },
  title = { A Bourgain-Brezis-Mironescu type result for the fractional relativistic seminorm },
  journal = {  },
  year = { 2023 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6028/ },
  note = { cvgmt preprint}
}