Advanced Decision Systems: Description of the CODEX System as Used for MUC-3 Laura Blumer Balcom author Richard M Tong author 1991 text Third Message Understanding Conference (MUC-3): Proceedings of a Conference Held in San Diego, California, May 21-23, 1991 conference publication balcom-tong-1991-advanced-decision https://aclanthology.org/M91-1020/ 1991