@article{conformalcalibrators,
  title = {Conformal calibrators},
  author = {Vladimir Vovk and Ivan Petej and Paolo Toccaceli and Alex Gammerman},
  year = {2019},
  eprint = {1902.06579},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1902.06579v1},
}