@Misc{ 
  BosRizRos24,
  author = { Bossio, Tania and Rizzi, Luca and Rossi, Tommaso },
  title = { Tubes in sub-Riemannian geometry and a Weyl's invariance result for
  curves in the Heisenberg groups },
  journal = {  },
  year = { 2024 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6750/ },
  note = { cvgmt preprint}
}