@inproceedings{zens-ney-2003-comparative,
    title = "A Comparative Study on Reordering Constraints in Statistical Machine Translation",
    author = "Zens, Richard  and
      Ney, Hermann",
    booktitle = "Proceedings of the 41st Annual Meeting of the Association for Computational Linguistics",
    month = jul,
    year = "2003",
    address = "Sapporo, Japan",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/P03-1019/",
    doi = "10.3115/1075096.1075115",
    pages = "144--151"
}