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参考文献
Neiland, O. Ya.; Kraupsha, I. L.; Gudele, I. Ya. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1993 , vol. 29, # 12 p. 1428 - 1434 Khimiya Geterotsiklicheskikh Soedinenii, 1993 , # 12 p. 1653 - 1661
Neiland, O. Ya.; Kraupsha, I. L.; Gudele, I. Ya. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1993 , vol. 29, # 12 p. 1428 - 1434 Khimiya Geterotsiklicheskikh Soedinenii, 1993 , # 12 p. 1653 - 1661