参考文献

Starshikov, N.M.; Pozharskii, A.F. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1980 , vol. 16, # 1 p. 81 - 85 Khimiya Geterotsiklicheskikh Soedinenii, 1980 , vol. 16, # 1 p. 96 - 100