@inproceedings{black-etal-1992-towards,
    title = "Towards History-based Grammars: Using Richer Models for Probabilistic Parsing",
    author = "Black, Ezra  and
      Jelinek, Fred  and
      Lafferty, John  and
      Magerman, David M.  and
      Mercer, Robert  and
      Roukos, Salim",
    booktitle = "Speech and Natural Language: Proceedings of a Workshop Held at Harriman, New York, {F}ebruary 23-26, 1992",
    year = "1992",
    url = "https://aclanthology.org/H92-1026/"
}