@Misc{ 
  ColMag16,
  author = { Colombo, Maria and Maggi, Francesco },
  title = { Existence and almost everywhere regularity of isoperimetric clusters for fractional perimeters },
  journal = { Nonlinear Analysis },
  year = { 2016 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3046/ },
  note = { cvgmt preprint}
}