@inproceedings{villadsen-1992-information,
    title = "Information States as First Class Citizens",
    author = "Villadsen, Jorgen",
    booktitle = "30th Annual Meeting of the Association for Computational Linguistics",
    month = jun,
    year = "1992",
    address = "Newark, Delaware, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/P92-1045/",
    doi = "10.3115/981967.982013",
    pages = "303--305"
}