@Misc{ 
  CatDarPun18,
  author = { Catino, Giovanni and Dario Daniele Monticelli,  and Punzo, Fabio },
  title = { The Poisson equation on manifolds with positive essential spectrum },
  journal = {  },
  year = { 2018 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/523/ },
  note = { cvgmt preprint}
}