@inproceedings{chappelier-etal-2002-polynomial, title = "Polynomial Tree Substitution Grammars: Characterization and New Examples", author = "Chappelier, Jean-C{\'e}dric and Rajman, Martin and Rozenknop, Antoine", editor = "Pierrel, Jean-Marie", booktitle = "Actes de la 9{\`e}me conf{\'e}rence sur le Traitement Automatique des Langues Naturelles. Posters", month = jun, year = "2002", address = "Nancy, France", publisher = "ATALA", url = "https://aclanthology.org/2002.jeptalnrecital-poster.7/", pages = "357--362" }