Tagge, Jürgen. “The Influence of Brushing and Pre-Staining Agents on the Removal of Impurities and Graying in Hydrocarbon Solvents”. Tekstil, vol. 43, no. 9, Sept. 1994, pp. 482-4, https://www.tekstil.hist.hr/index.php/tekstil/article/view/1290.