@inproceedings{sogaard-kuhn-2009-empirical,
    title = "Empirical Lower Bounds on Aligment Error Rates in Syntax-Based Machine Translation",
    author = "S{\o}gaard, Anders  and
      Kuhn, Jonas",
    editor = "Wu, Dekai  and
      Chiang, David",
    booktitle = "Proceedings of the Third Workshop on Syntax and Structure in Statistical Translation ({SSST}-3) at {NAACL} {HLT} 2009",
    month = jun,
    year = "2009",
    address = "Boulder, Colorado",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-emnlp/W09-2303/",
    pages = "19--27"
}