参考文献

Wanscheidt Chemische Berichte, 1926 , vol. 59, p. 2099 Zhurnal Russkago Fiziko-Khimicheskago Obshchestva, 1926 , vol. 58, p. 257,262 Chem. Zentralbl., 1927 , vol. 98, # I p. 92