Sah Journal of the Chinese Chemical Society (Peking), 1946 , vol. 13, p. 22,26,27 Recueil des Travaux Chimiques des Pays-Bas, 1940 , vol. 59, p. 231,233,234 Full Text Show Details Kao; Fan; Sah Journal of the Chinese Chemical Society (Peking), 1935 , vol. 3, p. 137,139