Liu Xianyue and Sun Rui
Information Technology Journal 12 ( 14 ): 2628 - 2634 , 2013
Sun Rui and Leng Kaijun
Information Technology Journal 12 ( 24 ): 8171 - 8175 , 2013
Sun Rui and Liu Xianyue
Journal of Applied Sciences 13 ( 21 ): 4708 - 4713 , 2013