@inproceedings{reimann-1987-dealing,
    title = "Dealing With the Notion ``Obligatory'' In Syntactic Analysis",
    author = "Reimann, Dorothee",
    editor = "Maegaard, Bente",
    booktitle = "Third Conference of the {E}uropean Chapter of the Association for Computational Linguistics",
    month = apr,
    year = "1987",
    address = "Copenhagen, Denmark",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/E87-1050/"
}