@inproceedings{yamamoto-etal-2008-imposing,
    title = "Imposing Constraints from the Source Tree on {ITG} Constraints for {SMT}",
    author = "Yamamoto, Hirofumi  and
      Okuma, Hideo  and
      Sumita, Eiichiro",
    editor = "Chiang, David  and
      Wu, Dekai",
    booktitle = "Proceedings of the {ACL}-08: {HLT} Second Workshop on Syntax and Structure in Statistical Translation ({SSST}-2)",
    month = jun,
    year = "2008",
    address = "Columbus, Ohio",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/W08-0401",
    pages = "1--9",
}