Liu Xianyue and Sun Rui
Information Technology Journal 12 ( 14 ): 2628 - 2634 , 2013
Liu Xianyue, Sun Rui and Wan Wenhai
Journal of Applied Sciences 13 ( 15 ): 2979 - 2983 , 2013
Sun Rui and Liu Xianyue
Journal of Applied Sciences 13 ( 21 ): 4708 - 4713 , 2013