@proceedings{coling-1969-international-linguistics-coling-1969-preprint-57,
    title = "{I}nternational {C}onference on {C}omputational {L}inguistics {COLING} 1969: Preprint No. 57",
    month = sep,
    year = "1969",
    address = {S{\r{a}}nga S{\"a}by, Sweden},
    url = "https://preview.aclanthology.org/volume-fixes/C69-5700/"
}
@inproceedings{ladefoged-1969-measurement,
    title = "The Measurement of Phonetic Similarity",
    author = "Ladefoged, Peter",
    booktitle = "{I}nternational {C}onference on {C}omputational {L}inguistics {COLING} 1969: Preprint No. 57",
    month = sep,
    year = "1969",
    address = {S{\r{a}}nga S{\"a}by, Sweden},
    url = "https://preview.aclanthology.org/volume-fixes/C69-5701/"
}