参考文献

Denisova, A. B.; Andronnikova, G. P. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1995 , vol. 31, # 7 p. 863 - 867 Khimiya Geterotsiklicheskikh Soedinenii, 1995 , # 7 p. 991 - 995