参考文献
Dey; Rajagopalan
Archiv der Pharmazie (Weinheim, Germany), 1939 , vol. 277, p. 359,377, 394
Proceedings of the National Institute of Sciences of India, 1940 , vol. 6, p. 135,167
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Rajagopalan
Journal of the Indian Chemical Society, 1940 , vol. 17, p. 567,569