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参考文献
Chekavichus, B. S.; Sausins, A. S.; Dubur, G. Ya. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1982 , vol. 18, # 8 p. 818 - 823 Khimiya Geterotsiklicheskikh Soedinenii, 1982 , vol. 18, # 8 p. 1072 - 1077
Chekavichus, B. S.; Sausins, A. S.; Dubur, G. Ya. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1982 , vol. 18, # 8 p. 818 - 823 Khimiya Geterotsiklicheskikh Soedinenii, 1982 , vol. 18, # 8 p. 1072 - 1077