@Misc{ 
  Mor13a,
  author = { Moreno, Giovanni },
  title = { On the canonical connection for smooth envelopes },
  journal = {  },
  year = { 2013 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/389/ },
  note = { cvgmt preprint}
}