@Misc{ 
  Fig18c,
  author = { Figalli, Alessio },
  title = { Regularity of interfaces in phase transitions via obstacle problems },
  journal = { Proceedings ICM 2018 },
  year = { 2018 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4003/ },
  note = { cvgmt preprint}
}