Abdelkrim Zitouni, Sami Badrouchi and Rached Tourki
Journal of Computer Science 2 ( 1 ): 63 - 71 , 2006
Sami Badrouchi, Abdelkrim Zitouni, Kholdoun Torki and Rached Tourki
Journal of Computer Science 1 ( 3 ): 429 - 436 , 2005