@Misc{ 
  CatDja7,
  author = { Catino, Giovanni and Djadli, Zindine },
  title = { Integral pinched 3-manifolds are space forms },
  journal = {  },
  year = { 2007 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/545/ },
  note = { cvgmt preprint}
}