Journal of East China Normal University(Natural Sc ›› 2014, Vol. 2014 ›› Issue (6): 121-125.doi: 10.3969/j.issn.1000-5641.2014.06.016
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LI Qiu-Ping, JIANG Li-Jia, LU Bei-Bei, LIU Chang, XIAO Tian-Zhong, WU Si-Ping, WANG Jian, ZHU Rui-Liang