@Misc{ 
  CaLiDaRo23,
  author = { Catino, Giovanni and Dario D. Monticelli,  and Li, Yanyan and Roncoroni, Alberto },
  title = { A Liouville theorem in the Heisenberg group },
  journal = {  },
  year = { 2023 },
  pages = {  },
  URL = { https://gecogedi.dimai.unifi.it/paper/546/ },
  note = { cvgmt preprint}
}