@Misc{ 
  BucFraGia18,
  author = { Bucur, Dorin and Fragalà, Ilaria and Giacomini, Alessandro },
  title = { Optimal partitions for Robin Laplacian eigenvalues },
  journal = {  },
  year = { 2018 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3801/ },
  note = { cvgmt preprint}
}