Bardin, V. V.; Aparina, L. N.; Pressman, L. S.; Furin, G. G. Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1989 , vol. 38, # 2 p. 1983 Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1989 , vol. 9, p. 2153 - 2154