Chen Pei-Pei, Zhang Qin-yu, Wang Ye and Meng Jing
Information Technology Journal 9 ( 3 ): 494 - 499 , 2010
Hu Yong-Guang, Chen Pei-Pei and Li Ping-Ping
Information Technology Journal 12 ( 22 ): 6729 - 6734 , 2013