Grammatical and Ungrammatical Structures in User-Adviser Dialogues: Evidence for Sufficiency of Restricted Languages in Natural Language Interfaces to Advisory Systems Raymonde Guindon author Kelly Shuldberg author Joyce Conner author 1987-07 text 25th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Stanford, California, USA conference publication guindon-etal-1987-grammatical 10.3115/981175.981181 https://aclanthology.org/P87-1006/ 1987-07 41 44