@inproceedings{russell-etal-1991-language,
    title = "A Language for the Statement of Binary Relations over Feature Structures",
    author = "Russell, Graham  and
      Ballim, Afzal  and
      Estival, Dominique  and
      Warwick-Armstrong, Susan",
    editor = {Kunze, J{\"u}rgen  and
      Reimann, Dorothee},
    booktitle = "Fifth Conference of the {E}uropean Chapter of the Association for Computational Linguistics",
    month = apr,
    year = "1991",
    address = "Berlin, Germany",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/E91-1050/"
}