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参考文献
Poddubnyi, I. S.; Belen'skii, L. I.; Krayushkin, M. M. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1994 , vol. 30, # 5 p. 602 - 607 Khimiya Geterotsiklicheskikh Soedinenii, 1994 , # 5 p. 686 - 692
Poddubnyi, I. S.; Belen'skii, L. I.; Krayushkin, M. M. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1994 , vol. 30, # 5 p. 602 - 607 Khimiya Geterotsiklicheskikh Soedinenii, 1994 , # 5 p. 686 - 692