Putochin Zhurnal Russkago Fiziko-Khimicheskago Obshchestva, 1928 , vol. 60, p. 1188 Chem. Zentralbl., 1929 , vol. 100, # I p. 999 Full Text Show Details Ainley; Robinson Journal of the Chemical Society, 1934 , p. 1508,1517