@Misc{ 
  Afe23a,
  author = { Afeltra, Claudio },
  title = { A compactness result for the CR Yamabe problem in three dimensions },
  journal = {  },
  year = { 2023 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6352/ },
  note = { cvgmt preprint}
}