Finite-state Approximation of Constraint-based Grammars using Left-corner Grammar Transforms Mark Johnson author 1998-08 text 36th Annual Meeting of the Association for Computational Linguistics and 17th International Conference on Computational Linguistics, Volume 1 Association for Computational Linguistics Montreal, Quebec, Canada conference publication johnson-1998-finite-state 10.3115/980845.980948 https://aclanthology.org/P98-1101/ 1998-08 619 623