参考文献
Dalal; Dutt
Journal of the Indian Chemical Society, 1932 , vol. 9, p. 313
Chem. Zentralbl., 1932 , vol. 103, # II p. 3705
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Pandya; Vahidy
Proceedings - Indian Academy of Sciences, Section A, 1936 , vol. 4, p. 135,138,141,145
Chem. Zentralbl., 1937 , vol. 108, # I p. 2767,2768