@inproceedings{innoutpretrainingandselftrainingusing1,
  title = {In-N-Out: Pre-Training and Self-Training using Auxiliary Information for Out-of-Distribution Robustness},
  author = {Sang Michael Xie and Ananya Kumar and Robbie Jones and Fereshte Khani and Tengyu Ma and Percy Liang},
  year = {2020},
  booktitle = {ICLR 2021 1},
  eprint = {2012.04550},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2012.04550v3},
}