@article{unifiedquestiongenerationwithcontinual,
  title = {Unified Question Generation with Continual Lifelong Learning},
  author = {Wei Yuan and Hongzhi Yin and Tieke He and Tong Chen and Qiufeng Wang and Lizhen Cui},
  year = {2022},
  eprint = {2201.09696},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2201.09696v2},
}