@article{openretrievalconversationalquestion,
  title = {Open-Retrieval Conversational Question Answering},
  author = {Chen Qu and Liu Yang and Cen Chen and Minghui Qiu and W. Bruce Croft and Mohit Iyyer},
  year = {2020},
  eprint = {2005.11364},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2005.11364v1},
}