Mikhailov, A. S.; Pashkurov, N. G.; Reznik, V. S.; Podzigun, G. I.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1984 , vol. 33, # 6 p. 1285 - 1291
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1984 , # 6 p. 1396 - 1402