Kostyanovskii, R. G.; Leshchinskaya, V. P.; Alekperov, R. K.; Kadorkina, G. K.; Shustova L. L.; et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1988 , vol. 37, p. 2315 - 2323
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1988 , # 11 p. 2566 - 2575