参考文献
Adkins; Wojcik; Covert
Journal of the American Chemical Society, 1933 , vol. 55, p. 1669,1673
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Mitsui
Memoirs of the College of Science, Kyoto Imperial University, 1935 , vol. <A> 18, p. 329,335
Chem. Zentralbl., 1936 , vol. 107, # I p. 4002