Kamernitskii, A. V.; Turuta, A. M.; Fadeeva, T. M.; Istomina, Z. I.; El'yanov, B. S. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation)Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 19851985, vol. 34, # 44 p. 841 - 844922 - 925 doi: 10.1007/BF00948073