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ZHANG Qi-Zhen, LIU Jian-Qiang, LI Ai-Xiang, ZHANG Jing-Zhi
2004, Vol. 62(3): 312-316
1. School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100;2. School of Physics and Microelectronics, Shandong University, Jinan 250100