Language Systems, Inc.MUC-3 Test Results and Analysis Christine A Montgomery author Bonnie Glover Stalls author Robert S Belvin author Robert E Stumberger author 1991 text Third Message Understanding Conference (MUC-3): Proceedings of a Conference Held in San Diego, California, May 21-23, 1991 conference publication montgomery-etal-1991-language https://aclanthology.org/M91-1011/ 1991