@inproceedings{loper-bird-2002-nltk,
    title = "{NLTK}: The Natural Language Toolkit",
    author = "Loper, Edward  and
      Bird, Steven",
    booktitle = "Proceedings of the {ACL}-02 Workshop on Effective Tools and Methodologies for Teaching Natural Language Processing and Computational Linguistics",
    month = jul,
    year = "2002",
    address = "Philadelphia, Pennsylvania, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/W02-0109/",
    doi = "10.3115/1118108.1118117",
    pages = "63--70"
}