Lozanova, A. V.; Moiseenkov, A. M.; Semenovskii, A. V. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation)Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 19811981, vol. 30, # 44 p. 619 - 623838 - 842 doi: 10.1007/BF00949727