参考文献

Lulle, I. Zh.; Paegle, R. A.; Mazheika, I. B.; Lidak, M. Yu. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 4 p. 439 - 446 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 4 p. 535 - 542