@inproceedings{southall-2003-defining,
    title = "Defining and identifying the roles of geographic references within text",
    author = "Southall, Humphrey",
    booktitle = "Proceedings of the {HLT}-{NAACL} 2003 Workshop on Analysis of Geographic References",
    year = "2003",
    url = "https://preview.aclanthology.org/ingest-emnlp/W03-0111/",
    pages = "69--78"
}