@inproceedings{optimalrepresentationsforcovariateshift1,
  title = {Optimal Representations for Covariate Shift},
  author = {Yangjun Ruan and Yann Dubois and Chris J. Maddison},
  year = {2021},
  booktitle = {ICLR 2022 4},
  eprint = {2201.00057},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2201.00057v2},
}