M. Mosa, Zhu Yuqun, Chen Jitao, A. Yattara, Chen Ying, Geng Wei and Zhang Jun
Information Technology Journal 1 ( 2 ): 118 - 125 , 2002
M. Mosa, Zhu Yuqun and A. Yattara
Journal of Applied Sciences 3 ( 5 ): 305 - 316 , 2003