@inproceedings{ren-perrault-1992-typology,
    title = "The Typology of Unknown Words: An Experimental Study of Two Corpora",
    author = "Ren, Xiaobo  and
      Perrault, Francois",
    booktitle = "{COLING} 1992 Volume 1: The 14th {I}nternational {C}onference on {C}omputational {L}inguistics",
    year = "1992",
    url = "https://preview.aclanthology.org/ingest-emnlp/C92-1063/"
}