@article{distributionfreeconditionalpredictive,
  title = {Flexible distribution-free conditional predictive bands using density estimators},
  author = {Rafael Izbicki and Gilson T. Shimizu and Rafael B. Stern},
  year = {2019},
  eprint = {1910.05575},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1910.05575v2},
}