参考文献
Rider
Journal of the American Chemical Society, 1932 , vol. 54, p. 773,775
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Sjoeberg
Svensk Kemisk Tidskrift, 1941 , vol. 53, p. 454,455
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Smith et al.
Acta Chemica Scandinavica (1947-1973), 1950 , vol. 4, p. 1375