@article{u2unifiedtwopassbidirectionalendtoend,
  title = {U2++: Unified Two-pass Bidirectional End-to-end Model for Speech Recognition},
  author = {Di wu and BinBin Zhang and Chao Yang and Zhendong Peng and Wenjing Xia and Xiaoyu Chen and Xin Lei},
  year = {2021},
  eprint = {2106.05642},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2106.05642v3},
}