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参考文献
Yamashkin, S. A.; Yudin, L. G.; Kost, A. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 4 p. 401 - 405 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 4 p. 493 - 497
Yamashkin, S. A.; Yudin, L. G.; Kost, A. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 4 p. 401 - 405 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 4 p. 493 - 497