@Article{ 
  GuaLaMVel20,
  author = { Guarino Lo Bianco, Serena and La Manna, Domenico Angelo and Velichkov, Bozhidar },
  title = { A two-phase problem with Robin conditions on the free boundary },
  journal = { Journal de l'École polytechnique - Mathématiques },
  year = { 2020 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4623/ },
  note = { cvgmt preprint}
}