参考文献

Krapivin, G. D.; Zavodnik, V. E.; Val'ter, N. I.; Bel'skii, V. K.; Kul'nevich, V. G. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1989 , vol. 25, # 9 p. 1005 - 1011 Khimiya Geterotsiklicheskikh Soedinenii, 1989 , # 9 p. 1201 - 1207