@inproceedings{karttunen-1969-discourse-referents,
    title = "Discourse Referents",
    author = "Karttunen, Lauri",
    booktitle = "{I}nternational {C}onference on {C}omputational {L}inguistics {COLING} 1969: Preprint No. 70",
    month = sep,
    year = "1969",
    address = {S{\r{a}}nga S{\"a}by, Sweden},
    url = "https://aclanthology.org/C69-7001/"
}