Grant, John, and V. S. Subra. “The Optimistic and Cautious Semantics for Inconsistent Knowledge Bases”. Acta Cybernetica 12, no. 1 (January 1, 1995): 37-55. Accessed April 19, 2024. https://cyber.bibl.u-szeged.hu/index.php/actcybern/article/view/3442.