@Article{ 
  DeL24,
  author = { De Lellis, Camillo },
  title = { Caffarelli's work on elliptic free boundary problems },
  journal = { Bull. Amer. Math. Soc. (N.S.) },
  year = { 2025 },
  volume = { 62 },
  number = { 2 },
  pages = { 273-300 },
  URL = { http://cvgmt.sns.it/paper/6733/ },
  note = { cvgmt preprint}
}