参考文献

Rutavicius, A.; Valiulene, S.; Kuodis, Z. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1995 , vol. 31, # 5 p. 629 - 633 Khimiya Geterotsiklicheskikh Soedinenii, 1995 , # 5 p. 708 - 712