@inproceedings{watkinson-manandhar-1999-unsupervised,
    title = "Unsupervised Lexical Learning with Categorial Grammars",
    author = "Watkinson, Stephen  and
      Manandhar, Suresh",
    booktitle = "Unsupervised Learning in Natural Language Processing",
    year = "1999",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/W99-0909/"
}