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参考文献
Semeikin, A. S.; Koifman, O. I.; Berezin, B. D. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 6 p. 629 - 632 Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 6 p. 798 - 801
Semeikin, A. S.; Koifman, O. I.; Berezin, B. D. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 6 p. 629 - 632 Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 6 p. 798 - 801