Xing-Xiu Wang, Han-Min Liu and Chun-Xia Yang
Journal of Applied Sciences 13 ( 20 ): 4293 - 4299 , 2013
Chun-Xia Yang, Han-Min Liu and Xing-Xiu Wang
Journal of Applied Sciences 13 ( 21 ): 4470 - 4476 , 2013