@article{lawinvariantfunctionalsthatcollapseto1,
  title = {Law-invariant functionals that collapse to the mean: Beyond convexity},
  author = {Felix-Benedikt Liebrich and Cosimo Munari},
  year = {2021},
  eprint = {2106.01281},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2106.01281v2},
}