@Misc{ 
  FerVel23,
  author = { Ferreri, Lorenzo and Velichkov, Bozhidar },
  title = { A one-sided two phase Bernoulli free boundary problem },
  journal = {  },
  year = { 2023 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6194/ },
  note = { cvgmt preprint}
}