@Misc{ 
  AmbErbSav15,
  author = { Ambrosio, Luigi and Erbar, Matthias and Savaré, Giuseppe },
  title = { Optimal transport, Cheeger energies and contractivity of dynamic transport distances in extended spaces },
  journal = {  },
  year = { 2015 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/2715/ },
  note = { cvgmt preprint}
}