@Misc{ 
  cancza08,
  author = { Cannarsa, Piermarco and Czarnecki, Marc-Olivier },
  title = { Minkowski content for reachable sets },
  journal = {  },
  year = { 2008 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/1037/ },
  note = { cvgmt preprint}
}