@Misc{ 
  AmbStrTre16a,
  author = { Ambrosio, Luigi and Stra, Federico and Trevisan, Dario },
  title = { A PDE approach to a 2-dimensional matching problem },
  journal = {  },
  year = { 2016 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3234/ },
  note = { cvgmt preprint}
}