@inproceedings{ye-etal-2022-robustness,
    title = "On the Robustness of Question Rewriting Systems to Questions of Varying Hardness",
    author = "Ye, Hai  and
      Ng, Hwee Tou  and
      Han, Wenjuan",
    editor = "Muresan, Smaranda  and
      Nakov, Preslav  and
      Villavicencio, Aline",
    booktitle = "Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)",
    month = may,
    year = "2022",
    address = "Dublin, Ireland",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/2022.acl-long.149/",
    doi = "10.18653/v1/2022.acl-long.149",
    pages = "2100--2113"
}