@Misc{ 
  HasLap17,
  author = { Hassannezhad, Asma and Laptev, Ari },
  title = { Eigenvalue bounds of mixed Steklov problems },
  journal = {  },
  year = { 2017 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4929/ },
  note = { cvgmt preprint}
}