@inproceedings{clark-2015-canonical,
    title = "Canonical Context-Free Grammars and Strong Learning: Two Approaches",
    author = "Clark, Alexander",
    editor = "Kuhlmann, Marco  and
      Kanazawa, Makoto  and
      Kobele, Gregory M.",
    booktitle = "Proceedings of the 14th Meeting on the Mathematics of Language ({M}o{L} 2015)",
    month = jul,
    year = "2015",
    address = "Chicago, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/Add-Cong-Liu-Florida-Atlantic-University-author-id/W15-2309/",
    doi = "10.3115/v1/W15-2309",
    pages = "99--111"
}