@Article{ 
  PraFus19,
  author = { Fusco, Nicola and Pratelli, Aldo },
  title = { Sharp stability for the Riesz potential },
  journal = { COCV },
  year = { 2020 },
  volume = { 26 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4473/ },
  note = { cvgmt preprint}
}