@inproceedings{johnson-2013-grammars,
    title = "Grammars and Topic Models",
    author = "Johnson, Mark",
    editor = "Kornai, Andr{\'a}s  and
      Kuhlmann, Marco",
    booktitle = "Proceedings of the 13th Meeting on the Mathematics of Language ({M}o{L} 13)",
    month = aug,
    year = "2013",
    address = "Sofia, Bulgaria",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/W13-3011/",
    pages = "102--103"
}