@inproceedings{extremelanguagemodelcompressionwith1,
  title = {Extremely Small BERT Models from Mixed-Vocabulary Training},
  author = {Sanqiang Zhao and Raghav Gupta and Yang song and Denny Zhou},
  year = {2019},
  booktitle = {EACL 2021 2},
  eprint = {1909.11687},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1909.11687v2},
}