Lapkin Zhurnal Obshchei Khimii, 1947 , vol. 17, p. 1339,1347,1348 Chem. Zentralbl., 1948 , vol. 119, p. 4978 Full Text Show Details Lapkin Zhurnal Obshchei Khimii, 1946 , vol. 16, p. 729,732,733 Chem. Zentralbl., 1947 , vol. 118, p. 1218