OBLING: A Tester for Transformational Grammars Serge Boisvert author Andre Dugas author Denise Belanger author 1973 text COLING 1973 Volume 1: Computational And Mathematical Linguistics: Proceedings of the International Conference on Computational Linguistics conference publication boisvert-etal-1973-obling https://aclanthology.org/C73-1009/ 1973