参考文献
Ahluwalia et al.
Proceedings - Indian Academy of Sciences, Section A, 1953 , # 38 p. 480,490
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Sugasawa; Kuriyagawa
Yakugaku Zasshi, 1935 , vol. 55, p. 176,181; engl. Ref. S. 43
Chem. Zentralbl., 1935 , vol. 106, # II p. 1710
