@Article{ 
  dalebopon02,
  author = { Dal Maso, Gianni and Ebobisse, Francois and Ponsiglione, Marcello },
  title = { A stability result for nonlinear Neumann problems under boundary variations },
  journal = { J. Math. Pures Appl. },
  year = { 2003 },
  volume = { 82 },
  pages = { 503-532 },
  URL = { http://cvgmt.sns.it/paper/79/ },
  note = { cvgmt preprint}
}