@article{wang2021kepler,
  title={KEPLER: A unified model for knowledge embedding and pre-trained language representation},
  author={Wang, Xiaozhi and Gao, Tianyu and Zhu, Zhaocheng and Zhang, Zhengyan and Liu, Zhiyuan and Li, Juanzi and Tang, Jian},
  journal={Transactions of the Association for Computational Linguistics},
  volume={9},
  pages={176--194},
  year={2021},
  publisher={MIT Press}
}