@Article{ 
  TilZuc13,
  author = { Tilli, Paolo and Zucco, Davide },
  title = { Asymptotics of the first Laplace eigenvalue with Dirichlet regions of prescribed length },
  journal = { SIAM J. Math. Anal. },
  year = { 2013 },
  volume = { 45 },
  number = { 6 },
  pages = { 3266–3282 },
  URL = { http://cvgmt.sns.it/paper/3833/ },
  note = { cvgmt preprint}
}