@inproceedings{tuldava-1980-mathematical,
    title = "A Mathematical Model of the Vocabulary-Text Relation",
    author = "Tuldava, Juhan",
    booktitle = "{COLING} 1980 Volume 1: The 8th International Conference on Computational Linguistics",
    year = "1980",
    url = "https://preview.aclanthology.org/Add-Cong-Liu-Florida-Atlantic-University-author-id/C80-1091/"
}