@inproceedings{towardsanswerunawareconversational,
  title = {Towards Answer-unaware Conversational Question Generation},
  author = {Mao Nakanishi and Tetsunori Kobayashi and Yoshihiko Hayashi},
  year = {2019},
  booktitle = {WS 2019 11},
  url = {https://aclanthology.org/D19-5809},
}