A Practical Nonmonotonic Theory for Reasoning about Speech Acts Douglas Appelt author Kurt Konolige author 1988-06 text 26th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Buffalo, New York, USA conference publication appelt-konolige-1988-practical 10.3115/982023.982044 https://aclanthology.org/P88-1021/ 1988-06 170 178