@inproceedings{manaster-ramer-zadrozny-1990-expressive,
    title = "Expressive Power of Grammatical Formalisms",
    author = "Manaster-Ramer, Alexis  and
      Zadrozny, Wlodek",
    booktitle = "{COLING} 1990 Volume 3: Papers presented to the 13th International Conference on Computational Linguistics",
    year = "1990",
    url = "https://aclanthology.org/C90-3035/"
}