[13] Kennedy J, Eberhart R. Proceedings of the IEEE International Conference on Neural Networks, 1995, 4: 1942.
[14] Eberhart R C, Kenedy J A. The Sixth International Symposium on Micro Machineand Human Science. Nagoya: IEEE Press, 1995: 39.
[15] Chuang Liyeh, Chang Hsuehwei, Tu Chungjui, et al. Computational Biology and Chemistry, 2008, 32(1): 29.
[16] Swagatam Das, Amit Konar. Engineering Applications of Artificial Intelligence, 2007, 20(8): 1086.