@Misc{ 
  CaMaMoRi14,
  author = { Catino, Giovanni and Mastrolia, Paolo and Monticelli, Dario and Rigoli, Marco },
  title = { On the geometry of gradient Einstein-type manifolds },
  journal = {  },
  year = { 2014 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/535/ },
  note = { cvgmt preprint}
}