文献:Rozhkov,I.N.; Kuleshova,N.D. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1976 , vol. 25, p. 1919 - 1923 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1976 , vol. 25, # 9 p. 2048 - 2052