@Article{ 
  GerKauRaj18a,
  author = { Gerolin, Augusto and Kausamo, Anna and Rajala, Tapio },
  title = { Non-existence of optimal transport maps for the multi-marginal repulsive  harmonic cost },
  journal = { SIAM Journal on Mathematical Analysis },
  year = { 2019 },
  doi = { 10.1137/18M1186514 },
  volume = { 51 },
  number = { 3 },
  pages = { 2359–2371 },
  URL = { http://cvgmt.sns.it/paper/3865/ },
  note = { cvgmt preprint}
}