@article{efronsteinpacbayesianinequalities,
  title = {Efron-Stein PAC-Bayesian Inequalities},
  author = {Ilja Kuzborskij and Csaba Szepesvári},
  year = {2019},
  eprint = {1909.01931},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1909.01931v2},
}