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Liu Minsheng;Yang Maizhi;Hao Yanzhong;Cai Shengmin;Li Yongfang
2001, Vol. 59(3): 377-382
Jiangxi Jiujiang Teachers Coll, Dept Chem.Jiujiang(332000);Beijing Univ., Dept. of Chem.Beijing(100871);Inst of Chem, CAS.Beijing(100080)