@Misc{ 
  LlePio23,
  author = { Llerena, Randy and Piovano, Paolo },
  title = { Existence of minimizers for a two-phase free boundary problem  with coherent and incoherent interfaces },
  journal = {  },
  year = { 2023 },
  pages = { 62 },
  URL = { http://cvgmt.sns.it/paper/6253/ },
  note = { cvgmt preprint}
}