Asymmetry in Parsing and Generating with Unification Grammars: Case Studies From ELU Graham Russell author John Carroll author Susan Warwick author 1990-06 text 28th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Pittsburgh, Pennsylvania, USA conference publication russell-etal-1990-asymmetry 10.3115/981823.981849 https://aclanthology.org/P90-1026/ 1990-06 205 211