@Article{ 
  morsan06,
  author = { Morel, Jean-Michel and Santambrogio, Filippo },
  title = { Comparison of distances between measures },
  journal = { Appl. Math. Lett. },
  year = { 2007 },
  volume = { 20 },
  number = { 4 },
  pages = { 427-432 },
  URL = { http://cvgmt.sns.it/paper/821/ },
  note = { cvgmt preprint}
}