参考文献

Krasovitskii, B. M.; Lysova, I. V.; Afanasiadi, L. Sh. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1980 , vol. 16, # 7 p. 701 - 703 Khimiya Geterotsiklicheskikh Soedinenii, 1980 , # 7 p. 909 - 911