@Article{ 
  Cat14a,
  author = { Catino, Giovanni },
  title = { On conformally flat manifolds with constant positive  scalar curvature },
  journal = { Proc. Amer. Math. Soc. },
  year = { 2016 },
  volume = { 144 },
  pages = { 2627-2634 },
  URL = { http://cvgmt.sns.it/paper/2499/ },
  note = { cvgmt preprint}
}