@article{johnson-1994-computing,
    title = "Computing with Features as Formulae",
    author = "Johnson, Mark",
    editor = "Hirschberg, Julia",
    journal = "Computational Linguistics",
    volume = "20",
    number = "1",
    year = "1994",
    address = "Cambridge, MA",
    publisher = "MIT Press",
    url = "https://preview.aclanthology.org/ingest_wac_2008/J94-1001/",
    pages = "1--25"
}