参考文献

Denisov, V. Ya.; Grishchenkova, T. N.; Fokin, E. P. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 9 p. 954 - 957 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 9 p. 1195 - 1198