@article{lawinvariantfunctionalsthatcollapseto,
  title = {Law-invariant functionals that collapse to the mean},
  author = {Fabio Bellini and Pablo Koch-Medina and Cosimo Munari and Gregor Svindland},
  year = {2020},
  eprint = {2009.04144},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2009.04144v2},
}