Manov-Yuvenskii, V. I.; Kuznetsov, S. L. Russian Journal of Applied Chemistry, 1993 , vol. 66, # 6.2 p. 1063 - 1069 Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation), 1993 , vol. 66, # 6 p. 1319 - 1327