参考文献
Fittig; Petkow
Justus Liebigs Annalen der Chemie, 1899 , vol. 304, p. 222
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Stobbe
Chemische Berichte, 1893 , vol. 26, p. 2314
Justus Liebigs Annalen der Chemie, 1894 , vol. 282, p. 283,286
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Stobbe
Chemische Berichte, 1903 , vol. 36, p. 198