参考文献

Volodarskii, L. B.; Grigor'eva, L. N.; Tikhonov, A. Ya. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , p. 1128 - 1132 Khimiya Geterotsiklicheskikh Soedinenii, 1983 , vol. 19, # 10 p. 1414 - 1418