@inproceedings{kupiec-1991-trellis,
    title = "A Trellis-Based Algorithm For Estimating The Parameters Of Hidden Stochastic Context-Free Grammar",
    author = "Kupiec, Julian",
    booktitle = "Speech and Natural Language: Proceedings of a Workshop Held at Pacific Grove, California, {F}ebruary 19-22, 1991",
    year = "1991",
    url = "https://preview.aclanthology.org/fix-sig-urls/H91-1046/"
}