@inproceedings{zhang-etal-2021-sparsifying,
    title = "On Sparsifying Encoder Outputs in Sequence-to-Sequence Models",
    author = "Zhang, Biao  and
      Titov, Ivan  and
      Sennrich, Rico",
    editor = "Zong, Chengqing  and
      Xia, Fei  and
      Li, Wenjie  and
      Navigli, Roberto",
    booktitle = "Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021",
    month = aug,
    year = "2021",
    address = "Online",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2021.findings-acl.255/",
    doi = "10.18653/v1/2021.findings-acl.255",
    pages = "2888--2900"
}