@Misc{ 
  figvil07,
  author = { Figalli, Alessio and Villani, Cédric },
  title = { Strong displacement convexity on Riemannian manifolds },
  journal = { Mathematische Zeitschrift },
  year = { 2007 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/849/ },
  note = { cvgmt preprint}
}