@Article{ 
  RizRos20,
  author = { Rizzi, Luca and Rossi, Tommaso },
  title = { Heat content asymptotics for sub-Riemannian manifolds },
  journal = { J. Math. Pures Appl. },
  year = { 2021 },
  doi = { 10.1016/j.matpur.2020.12.004 },
  volume = { 148 },
  pages = { 267-307 },
  URL = { http://cvgmt.sns.it/paper/4659/ },
  note = { cvgmt preprint}
}