@Misc{ 
  AcCeCrNiTr24,
  author = { Acampora, Paolo and Celentano, Antonio and Cristoforoni, Emanuele and Nitsch, Carlo and Trombetti, Cristina },
  title = { A spectral isoperimetric inequality on the n-sphere for the
  Robin-Laplacian with negative boundary parameter },
  journal = {  },
  year = { 2024 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6674/ },
  note = { cvgmt preprint}
}