Feature Unification in TAG Derivation Trees Sylvain Schmitz author Joseph Le Roux author 2008-06 text Proceedings of the Ninth International Workshop on Tree Adjoining Grammar and Related Frameworks (TAG+9) Claire Gardent editor Anoop Sarkar editor Association for Computational Linguistics Tübingen, Germany conference publication schmitz-le-roux-2008-feature https://aclanthology.org/W08-2319/ 2008-06 141 148