@proceedings{coling-1969-international-linguistics-coling-1969-preprint-21,
    title = "{I}nternational {C}onference on {C}omputational {L}inguistics {COLING} 1969: Preprint No. 21",
    month = sep,
    year = "1969",
    address = {S{\r{a}}nga S{\"a}by, Sweden},
    url = "https://aclanthology.org/C69-2100/"
}