@inproceedings{egg-etal-1998-constraints,
    title = "Constraints over Lambda-Structures in Semantic Underspecification",
    author = "Egg, Markus  and
      Niehren, Joachim  and
      Ruhrberg, Peter  and
      Xu, Feiyu",
    booktitle = "{COLING} 1998 Volume 1: The 17th International Conference on Computational Linguistics",
    year = "1998",
    url = "https://preview.aclanthology.org/landing_page/C98-1056/"
}