@Article{ 
  Cai23,
  author = { Caillet, Thibault },
  title = { The five gradients inequality for non quadratic costs },
  journal = { Comptes Rendus. Mathématique },
  year = { 2023 },
  doi = { 10.5802/crmath.444 },
  volume = { 361 },
  pages = { 715-721 },
  URL = { http://cvgmt.sns.it/paper/5955/ },
  note = { cvgmt preprint}
}