@inproceedings{unsupervisedcommonquestiongenerationfrom,
  title = {Contrastive Multi-document Question Generation},
  author = {Woon Sang Cho and Yizhe Zhang and Sudha Rao and Asli Celikyilmaz and Chenyan Xiong and Jianfeng Gao and Mengdi Wang and Bill Dolan},
  year = {2019},
  booktitle = {EACL 2021 2},
  eprint = {1911.03047},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1911.03047v3},
}