Alekseev, V. I.; Zyubina, T. S.; Zyubin, A. S.; Baluev, A. V. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1989 , vol. 38, # 10 p. 2092 - 2096 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1989 , vol. 38, # 10 p. 2278 - 2282