@inproceedings{ma-etal-2022-open-domain,
    title = "Open-domain Question Answering via Chain of Reasoning over Heterogeneous Knowledge",
    author = "Ma, Kaixin  and
      Cheng, Hao  and
      Liu, Xiaodong  and
      Nyberg, Eric  and
      Gao, Jianfeng",
    editor = "Goldberg, Yoav  and
      Kozareva, Zornitsa  and
      Zhang, Yue",
    booktitle = "Findings of the Association for Computational Linguistics: EMNLP 2022",
    month = dec,
    year = "2022",
    address = "Abu Dhabi, United Arab Emirates",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2022.findings-emnlp.392/",
    doi = "10.18653/v1/2022.findings-emnlp.392",
    pages = "5360--5374"
}