Guang-rong Li, Huan Liu and Chun-he Li
Information Technology Journal 12 ( 16 ): 3843 - 3848 , 2013
Guang-Rong Li, Chun-He Li, Xiu-Hong Niu and Li-Ping Yang
Journal of Applied Sciences 13 ( 21 ): 4819 - 4825 , 2013