参考文献
Hurd; Bollman
Journal of the American Chemical Society, 1933 , vol. 55, p. 701
Journal of the American Chemical Society, 1934 , vol. 56, p. 447
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van Risseghem
Bulletin des Societes Chimiques Belges, 1933 , vol. 42, p. 220,228
Bulletin des Societes Chimiques Belges, 1938 , vol. 47, p. 57