User-Defined Nonmonotonicity in Unification-Based Formalisms Lena Stromback author 1995-06 text 33rd Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Cambridge, Massachusetts, USA conference publication stromback-1995-user 10.3115/981658.981667 https://aclanthology.org/P95-1009/ 1995-06 63 69