@Article{ 
  Ron17,
  author = { Roncoroni, Alberto },
  title = { A Serrin-type symmetry result on model manifolds: an extension of the
  Weinberger argument },
  journal = { Comptes Rendus Mathematique },
  year = { 2018 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/463/ },
  note = { cvgmt preprint}
}