@Article{ 
  DonMag23,
  author = { Don, Sebastiano and Magnani, Valentino },
  title = { Surface measure on, and the local geometry of, sub-Riemannian manifolds },
  journal = { Calc. Var. Partial Differential Equations },
  year = { 2023 },
  volume = { 62 },
  number = { 254 },
  pages = { 42 },
  URL = { http://cvgmt.sns.it/paper/5896/ },
  note = { cvgmt preprint}
}