@inproceedings{generationaugmentedretrievalforopen,
  title = {Generation-Augmented Retrieval for Open-domain Question Answering},
  author = {Yuning Mao and Pengcheng He and Xiaodong Liu and Yelong Shen and Jianfeng Gao and Jiawei Han and Weizhu Chen},
  year = {2020},
  booktitle = {ACL 2021 5},
  eprint = {2009.08553},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2009.08553v4},
}