参考文献

Povstyanoi, M. V.; Klykov, M. A.; Klyuev, N. A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1981 , vol. 17, # 6 p. 622 - 626 Khimiya Geterotsiklicheskikh Soedinenii, 1981 , # 6 p. 833 - 837