@inproceedings{kiefer-1969-progress,
    title = "A Progress Report on the Use of Slant Grammar Calculus for Automatic Analysis",
    author = "Kiefer, Ferenc",
    booktitle = "{I}nternational {C}onference on {C}omputational {L}inguistics {COLING} 1969: Preprint No. 64",
    month = sep,
    year = "1969",
    address = {S{\r{a}}nga S{\"a}by, Sweden},
    url = "https://preview.aclanthology.org/fix-sig-urls/C69-6401/"
}