参考文献

Imashev, U. B.; Kalashnikov, S. M.; Gordeeva, G. N. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 4 p. 369 - 373 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 4 p. 459 - 463