参考文献
Haussknecht
Justus Liebigs Annalen der Chemie, 1867 , vol. 143, p. 45
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v. Grossmann
Chemische Berichte, 1893 , vol. 26, p. 641
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Spieckermann
Chemische Berichte, 1895 , vol. 28, p. 277
Chemische Berichte, 1896 , vol. 29, p. 812