DU Hongtao LIAOQinghua CAOYong XUJun XUChuanbing WANGJunru. [J]. Journal of Beijing Normal University(Natural Science), 2013, 49(2): 360-364.
Citation: DU Hongtao LIAOQinghua CAOYong XUJun XUChuanbing WANGJunru. [J]. Journal of Beijing Normal University(Natural Science), 2013, 49(2): 360-364.
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