Chun Ruan, Vijay Varadharajan, Yan Zhang. Evaluation of Authorization with Delegation and Negation. In Mieczyslaw A. Klopotek, Slawomir T. Wierzchon, Krzysztof Trojanowski, editors, Intelligent Information Processing and Web Mining, Proceedings of the International IIS: IIPWM 03 Conference held in Zakopane, Poland, June 2-5, 2003. Advances in Soft Computing, pages 547-551, Springer, 2003.
Abstract is missing.