参考文献

Borovkov, V. V.; Evstigneeva, R. P.; Makova, S. Z. Chemistry of Heterocyclic Compounds (New York, NY, United States)Khimiya Geterotsiklicheskikh Soedinenii, 19921992, vol. 28, # 22 p. 142 - 147176 - 182 doi: 10.1007/BF00473932