@Misc{ 
  GobPic23a,
  author = { Gobbino, Massimo and Picenni, Nicola },
  title = { Gamma-liminf estimate for a class of non-local approximations of Sobolev
  and BV norms },
  journal = {  },
  year = { 2023 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6289/ },
  note = { cvgmt preprint}
}