参考文献

Novikov, V. N.; Polyakov, V. E. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1982 , vol. 18, # 6 p. 563 - 566 Khimiya Geterotsiklicheskikh Soedinenii, 1982 , vol. 18, # 6 p. 747 - 750