@article{JMLR:v25:22-0641,
  author  = {Christian Fr{{\"o}}hlich and Robert C. Williamson},
  title   = {Risk Measures and Upper Probabilities: Coherence and Stratification},
  journal = {Journal of Machine Learning Research},
  year    = {2024},
  volume  = {25},
  number  = {207},
  pages   = {1--100},
  url     = {http://jmlr.org/papers/v25/22-0641.html}
}