Pin Lv, Lin Yuan, Jinfang Zhang. Cloud Theory Based Simulated Annealing Algorithm for Multiple Observers Sitting on Terrain Problem. In De-Shuang Huang, Donald C. Wunsch II, Daniel S. Levine, Kang-Hyun Jo, editors, Advanced Intelligent Computing Theories and Applications. With Aspects of Artificial Intelligence, 4th International Conference on Intelligent Computing, ICIC 2008, Shanghai, China, September 15-18, 2008, Proceedings. Volume 5227 of Lecture Notes in Computer Science, pages 750-757, Springer, 2008. [doi]