@inproceedings{oliva-1990-simple,
    title = "Simple Parser for an Hpsg-Style Grammar Implemented in {P}rolog",
    author = "Oliva, Karel",
    booktitle = "{COLING} 1990 Volume 3: Papers presented to the 13th International Conference on Computational Linguistics",
    year = "1990",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/C90-3096/"
}