Hee Suk Seo Tae Ho Cho Sung-Do Chi Modeling and Simulation of Distributed Security Models. 809-818 https://doi.org/10.1007/3-540-44864-0_83 2003 conf/iccS/2003-4 International Conference on Computational Science db/conf/iccS/iccS2003-4.html#SeoCC03