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参考文献
Tishchenko, I. G.; Bubel', O. N.; Konovalov, V. A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1981 , vol. 17, # 1 p. 29 - 33 Khimiya Geterotsiklicheskikh Soedinenii, 1981 , # 1 p. 38 - 42
Tishchenko, I. G.; Bubel', O. N.; Konovalov, V. A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1981 , vol. 17, # 1 p. 29 - 33 Khimiya Geterotsiklicheskikh Soedinenii, 1981 , # 1 p. 38 - 42