DENGChunfeng LIAOBin ZHANGXu LIJing WANGKai WU Xianying. [J]. Journal of Beijing Normal University(Natural Science), 2012, 48(3): 257-262.
Citation: DENGChunfeng LIAOBin ZHANGXu LIJing WANGKai WU Xianying. [J]. Journal of Beijing Normal University(Natural Science), 2012, 48(3): 257-262.
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