@Misc{ 
  ColGirHas18,
  author = { Colbois, Bruno and Girouard, Alexandre and Hassannezhad, Asma },
  title = { The Steklov and Laplacian spectra of Riemannian manifolds with boundary },
  journal = {  },
  year = { 2018 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4928/ },
  note = { cvgmt preprint}
}