ZHANG Kun, FENG Liqun, YU Changyu, et al. The research of the design of spherical gear transmission used in flexible wrist of robots [J]. J Tsinghua Univ (Sci and Tech),1994, 34(2): 1-7. (in Chinese)
[2] 郑开青. 通讯系统模拟及软件[D]. 北京: 清华大学,1987.
ZHENG Kaiqing. Simulation of Communication System and Its Software [D]. Beijing: Tsinghua University, 1987. (in Chinese)
[3] Petrowski A. A clearing procedure as a niching method for genetic algorithms [C] // Proc 3rd IEEE Conf Evolutionary Computation. Piscataway, NJ: IEEE Press, 1996:798-803.