Fokin, A. V.; Rapkin, A. I.; Krylov, I. N.; Kutenov, A. P.; Studnev, Yu. N.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1986 , vol. 35, # 10 p. 2165 - 2168
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1986 , # 10 p. 2364 - 2367