@Misc{ 
  TerTorVit22,
  author = { Terracini, Susanna and Tortone, Giorgio and Vita, Stefano },
  title = { Higher order boundary Harnack principle via degenerate equations },
  journal = {  },
  year = { 2022 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6279/ },
  note = { cvgmt preprint}
}