参考文献
Bergel; Todd
Journal of the Chemical Society, 1938 , p. 26
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Andersag; Westphal
Chemische Berichte, 1937 , vol. 70, p. 2035,2044
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Todd; Bergel
Journal of the Chemical Society, 1937 , p. 367
Journal of the Chemical Society, 1938 , p. 28