参考文献
Brass; Sommer
Chemische Berichte, 1928 , vol. 61, p. 1001
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Rowe; Levin
Journal of the Society of Dyers and Colourists, 1924 , vol. 40, p. 218,222
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Mangini; Andrisano
Pubbl.Ist.Chim.ind.Univ.Bologna, 1943 , # 8 p. 3,24