Bubnov, Yu. N.; Gurskii, M. E.; Pershin, D. G.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1987 , vol. 36, # 5 p. 1107
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1987 , vol. 36, # 5 p. 1193 - 1194