@inproceedings{barnett-etal-1991-reversible,
    title = "Reversible Machine Translation: What to Do When the Languages Don{'}t Line Up",
    author = "Barnett, James  and
      Mani, Inderjeet  and
      Martin, Paul  and
      Rich, Elaine",
    booktitle = "Reversible Grammar in Natural Language Processing",
    year = "1991",
    url = "https://preview.aclanthology.org/fix-sig-urls/W91-0109/"
}