@Article{ 
  FraPra19,
  author = { Franceschi, Valentina and Prandi, Dario },
  title = { Hardy-type inequalities for the Carnot-Carathéodory distance in the Heisenberg group },
  journal = { Journal of Geometric Analysis },
  year = { 2020 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4263/ },
  note = { cvgmt preprint}
}