参考文献
Tiemann
Chemische Berichte, 1889 , vol. 22, p. 1936
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Fischer,E.
Chemische Berichte, 1889 , vol. 22, p. 1935
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Voltmer
Chemische Berichte, 1891 , vol. 24, p. 384
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v. d. Kall
Justus Liebigs Annalen der Chemie, 1891 , vol. 263, p. 261