@Article{ 
  DiMGigPra20,
  author = { Di Marino, Simone and Gigli, Nicola and Pratelli, Aldo },
  title = { Global Lipschitz extension preserving local constants },
  journal = { Rend. Lincei Mat. Appl. },
  year = { 2020 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4764/ },
  note = { cvgmt preprint}
}