@Article{ 
  GriNarPan19,
  author = { Grimaldi, Renata and Nardulli, Stefano and Pansu, Pierre },
  title = { Differentiability of the isoperimetric profile and topology of analytic Riemannian manifolds },
  journal = { Comptes Rendus Mathématiques de l'académie des sciences, Paris. },
  year = { 2009 },
  volume = { 347 },
  number = { (5-6) },
  pages = { 293-297 },
  URL = { http://cvgmt.sns.it/paper/4410/ },
  note = { cvgmt preprint}
}