Metagrammar engineering: Towards systematic exploration of implemented grammars Antske Fokkens author 2011-06 text Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies Dekang Lin editor Yuji Matsumoto editor Rada Mihalcea editor Association for Computational Linguistics Portland, Oregon, USA conference publication fokkens-2011-metagrammar https://aclanthology.org/P11-1107/ 2011-06 1066 1076