ＧＡＯＪｕｎ ＷＡＮＧ ＨｕｉＸｉａｏ ＬＩＵ Ｈａｉｊｕｎ ＬＩＵＳｈｅｎｇｙａ. J. Journal of Beijing Normal University(Natural Science), 2012, 48(5): 572-576.
Citation: ＧＡＯＪｕｎ ＷＡＮＧ ＨｕｉＸｉａｏ ＬＩＵ Ｈａｉｊｕｎ ＬＩＵＳｈｅｎｇｙａ. J. Journal of Beijing Normal University(Natural Science), 2012, 48(5): 572-576.
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