@Misc{ 
  DePSpoVel21,
  author = { De Philippis, Guido and Spolaor, Luca and Velichkov, Bozhidar },
  title = { (Quasi-)conformal methods in two-dimensional free boundary problems },
  journal = { J. Eur. Math. Soc. },
  year = { 2021 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5998/ },
  note = { cvgmt preprint}
}