@Misc{ 
  BogBucFra17,
  author = { Bogosel, Beniamin and Bucur, Dorin and Fragalà, Ilaria },
  title = { Phase field approach to optimal packing problems and related Cheeger clusters },
  journal = {  },
  year = { 2017 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3498/ },
  note = { cvgmt preprint}
}