Deriving Verbal and Compositonal Lexical Aspect for NLP Applications Bonnie J Dorr author Mari Broman Olsen author 1997-07 text 35th Annual Meeting of the Association for Computational Linguistics and 8th Conference of the European Chapter of the Association for Computational Linguistics Association for Computational Linguistics Madrid, Spain conference publication dorr-olsen-1997-deriving 10.3115/976909.979637 https://aclanthology.org/P97-1020/ 1997-07 151 158