参考文献

Belen'kii, L. I.; Cheskis, M. A. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 7 p. 713 - 716 Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, # 7 p. 881 - 884