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Journal of Zhejiang University-SCIENCE A > 2005 > 6 > 10 > 1107-1114
Journal of Zhejiang University-SCIENCE A > 2005 > 6 > 10 > 1107-1114
Journal of Zhejiang University-SCIENCE A > 2005 > 6 > 10 > 1107-1114
Journal of Zhejiang University-SCIENCE A > 2005 > 6 > 10 > 1107-1114