@Misc{ 
  Amb19,
  author = { Ambrosio, Luigi and Glaudo, Federico and Trevisan, Dario },
  title = { On the optimal map in the 2-dimensional random matching problem },
  journal = {  },
  year = { 2019 },
  pages = { 20 },
  URL = { http://cvgmt.sns.it/paper/4265/ },
  note = { cvgmt preprint}
}