参考文献
Bell
Journal of the Chemical Society, 1936 , p. 1156
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Bell; Levinge
Proceedings of the Royal Society of London, Series A: Mathematical, Physical and Engineering Sciences, 1935 , vol. 151, p. 211
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Bell
Proceedings of the Royal Society of London, Series A: Mathematical, Physical and Engineering Sciences, 1934 , vol. 143, p. 377,384-393,397