参考文献

Yutilov, Yu. M.; Shcherbina, L. I. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1987 , vol. 23, # 5 p. 529 - 535 Khimiya Geterotsiklicheskikh Soedinenii, 1987 , vol. 23, # 5 p. 639 - 645