The Structure of Shared Forests in Ambiguous Parsing Sylvie Billot author Bernard Lang author 1989-06 text 27th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Vancouver, British Columbia, Canada conference publication billot-lang-1989-structure 10.3115/981623.981641 https://aclanthology.org/P89-1018/ 1989-06 143 151