Jakubowitsch; Newjadomskii Zhurnal Obshchei Khimii, 1948 , vol. 18, p. 887,889 Chem.Abstr., 1949 , p. 232 Full Text Show Details Grigorowskii; Simeonow Zhurnal Obshchei Khimii, 1951 , vol. 21, p. 589,596; engl. Ausg. S. 653, 659