@article{buttelmann-1974-semantic,
    title = "Semantic Directed Translation of Context Free Languages",
    author = "Buttelmann, H. William",
    editor = "Hays, David G.",
    journal = "American Journal of Computational Linguistics",
    month = dec,
    year = "1974",
    note = "Microfiche 7",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/J74-2002/"
}