@inproceedings{ranta-etal-2009-grammar,
    title = "Grammar Development in {GF}",
    author = {Ranta, Aarne  and
      Angelov, Krasimir  and
      Bringert, Bj{\"o}rn},
    editor = {Kreutel, J{\"o}rn},
    booktitle = "Proceedings of the Demonstrations Session at {EACL} 2009",
    month = apr,
    year = "2009",
    address = "Athens, Greece",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/E09-2015/",
    pages = "57--60"
}