参考文献

Lulle, I. Zh.; Paegle, R. A.; Lidak, M. Yu.; Krishane, V. E. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 11 p. 1228 - 1230 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 11 p. 1545 - 1547