参考文献
Bamberger
Chemische Berichte, 1891 , vol. 24, p. 3264
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Bamberger
Chemische Berichte, 1892 , vol. 25, p. 3550
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Bamberger; Wheelwright
Journal fuer Praktische Chemie (Leipzig), 1902 , vol. <2> 65, p. 123,124, 125