@Article{ 
  fusmagpra07,
  author = { Fusco, Nicola and Maggi, Francesco and Pratelli, Aldo },
  title = { Stability estimates for certain Faber-Krahn, isocapacitary and Cheeger inequalities },
  journal = { Ann. Sc. Norm. Super. Pisa Cl. Sci. (5)  },
  year = { 2007 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/802/ },
  note = { cvgmt preprint}
}