@inproceedings{xu-etal-2021-improving-multilingual,
    title = "Improving Multilingual Neural Machine Translation with Auxiliary Source Languages",
    author = "Xu, Weijia  and
      Yin, Yuwei  and
      Ma, Shuming  and
      Zhang, Dongdong  and
      Huang, Haoyang",
    editor = "Moens, Marie-Francine  and
      Huang, Xuanjing  and
      Specia, Lucia  and
      Yih, Scott Wen-tau",
    booktitle = "Findings of the Association for Computational Linguistics: EMNLP 2021",
    month = nov,
    year = "2021",
    address = "Punta Cana, Dominican Republic",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2021.findings-emnlp.260/",
    doi = "10.18653/v1/2021.findings-emnlp.260",
    pages = "3029--3041"
}