@Misc{ 
  BilMer16,
  author = { Biliotti, Leonardo and Mercuri, Francesco },
  title = { Riemannian Hilbert manifolds },
  journal = { arXiv:1610.01527 [math.DG] },
  year = { 2016 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/160/ },
  note = { cvgmt preprint}
}