WANGKai LIAO Bin WU Xianying LI Jing SHIXuewei YUJingjing. [J]. Journal of Beijing Normal University(Natural Science), 2013, 50(6): 565-570.
Citation: WANGKai LIAO Bin WU Xianying LI Jing SHIXuewei YUJingjing. [J]. Journal of Beijing Normal University(Natural Science), 2013, 50(6): 565-570.
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