@Misc{ 
  BoBuChDe19,
  author = { Bouchitté, Guy and Buttazzo, Giuseppe and Champion, Thierry and De Pascale, Luigi },
  title = { Relaxed multi-marginal costs and quantization effects },
  journal = {  },
  year = { 2019 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/4375/ },
  note = { cvgmt preprint}
}