Gafurov, M. B.; Abduvakhabov, A. A.; Vaizburg, G. M.; Dalimov, D. N.; Zuparova, K. M.; et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1987 , vol. 36, # 3 p. 591 - 593
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1987 , # 3 p. 647 - 650