@Misc{ 
  ColSpo17,
  author = { Colombo, Maria and Spolaor, Luca },
  title = { Quantitative estimate on singularities in isoperimetric clusters },
  journal = { CAG },
  year = { 2017 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3306/ },
  note = { cvgmt preprint}
}