@Misc{ 
  farval10a,
  author = { Farina, Alberto and Valdinoci, Enrico },
  title = { Rigidity results for elliptic PDEs with uniform limits : an abstract framework with applications },
  journal = { Indiana University Mathematics Journal },
  year = { 2010 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/500/ },
  note = { cvgmt preprint}
}