@inproceedings{ratnaparkhi-1998-statistical,
    title = "Statistical Models for Unsupervised Prepositional Phrase Attachment",
    author = "Ratnaparkhi, Adwait",
    booktitle = "{COLING} 1998 Volume 2: The 17th International Conference on Computational Linguistics",
    year = "1998",
    url = "https://preview.aclanthology.org/fix-sig-urls/C98-2172/"
}