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参考文献
Bobrovskii, S. I.; Lushnikov, D. E.; Bundel', Yu. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 12 p. 1360 - 1364 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , vol. 25, # 12 p. 1634 - 1638
Bobrovskii, S. I.; Lushnikov, D. E.; Bundel', Yu. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 12 p. 1360 - 1364 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , vol. 25, # 12 p. 1634 - 1638