Ismailov, V. M.; Mamedova, L. G.; Kantaeva, M. K.; Mamedov, I. A. Russian Journal of Applied Chemistry, 1994 , vol. 67, # 8.2 p. 1233 - 1234 Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation), 1994 , vol. 67, # 8 p. 1400 - 1401