@inproceedings{toutanova-etal-2002-extentions,
    title = "Extensions to {HMM}-based Statistical Word Alignment Models",
    author = "Toutanova, Kristina  and
      Ilhan, H. Tolga  and
      Manning, Christopher",
    booktitle = "Proceedings of the 2002 Conference on Empirical Methods in Natural Language Processing ({EMNLP} 2002)",
    month = jul,
    year = "2002",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-emnlp/W02-1012/",
    doi = "10.3115/1118693.1118705",
    pages = "87--94"
}