@inproceedings{parmentier-etal-2006-xmg,
    title = "{XMG} - An Expressive Formalism for Describing Tree-Based Grammars",
    author = "Parmentier, Yannick  and
      Roux, Joseph Le  and
      Crabb{\'e}, Beno{\^i}t",
    booktitle = "Demonstrations",
    year = "2006",
    url = "https://aclanthology.org/E06-2005/",
    pages = "103--106"
}