参考文献

Vasil'ev,G.S. et al. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1971 , vol. 20, p. 992 - 996 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1971 , vol. 20, # 5 p. 1079 - 1084