@inproceedings{hays-1960-grouping,
    title = "Grouping and Dependency Theories",
    author = "Hays, David G.",
    editor = "Edmundson, H. P.",
    booktitle = "Proceedings of the National Symposium on Machine Translation",
    month = "2-5 " # feb,
    year = "1960",
    address = "Los Angeles",
    url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/1960.earlymt-nsmt.31/"
}