@Misc{ 
  MonPunSqu18,
  author = { Monticelli, Dario Daniele and Punzo, Fabio and Squassina, Marco },
  title = { Nonexistence for hyperbolic problems on riemannian manifolds },
  journal = { Asymptotic Anal. },
  year = { 2018 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3965/ },
  note = { cvgmt preprint}
}