@inproceedings{ha-etal-2002-extension,
    title = "Extension of {Z}ipf{'}s Law to Words and Phrases",
    author = "Ha, Le Quan  and
      Sicilia-Garcia, E. I.  and
      Ming, Ji  and
      Smith, F. J.",
    booktitle = "{COLING} 2002: The 19th International Conference on Computational Linguistics",
    year = "2002",
    url = "https://preview.aclanthology.org/fix-sig-urls/C02-1117/"
}