@article{JMLR:v16:ovcharov15a,
  author  = {Evgeni Y. Ovcharov},
  title   = {Existence and Uniqueness of Proper Scoring Rules},
  journal = {Journal of Machine Learning Research},
  year    = {2015},
  volume  = {16},
  number  = {67},
  pages   = {2207--2230},
  url     = {http://jmlr.org/papers/v16/ovcharov15a.html}
}