E. Bouali, N. Abdelbaki, R. Bouzid and M. Gaceb
Journal of Engineering and Applied Sciences 2 ( 1 ): 256 - 262 , 2007
N. Abdelbaki, E. Bouali, R. Bouzid and M. Gaceb
Journal of Engineering and Applied Sciences 2 ( 1 ): 263 - 270 , 2007