Shapiro, E.A.; Romanova, T.N.; Dolgii, I.E.; Nefedov, O.M.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1984 , vol. 33, # 11 p. 2323 - 2327
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1984 , # 11 p. 2535 - 2540