参考文献

Oleinik, A. F.; Adamskaya, E. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 11 p. 1221 - 1224 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 11 p. 1537 - 1539