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XU Zhi-Fan, WANG Qiu-Ju, LI Wei-Ping
JOURNAL OF KUNMING METALLURGY COLLEGE . 2010, (2): 30 -33 .  DOI: １０．３９６９／ｊ．ｉｓｓｎ．１００９－０４７９．２０１０．０２．００８