@article{diversifyingquestiongenerationover,
  title = {Diversifying Question Generation over Knowledge Base via External Natural Questions},
  author = {Shasha Guo and Jing Zhang and Xirui Ke and Cuiping Li and Hong Chen},
  year = {2023},
  eprint = {2309.14362},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2309.14362v1},
}