Bischof Vukušić, Sandra, Drago Katović, and Christian Schramm. 2004. “Influence of Fluorocarbon Polymers in Functional Finishing With Polycarboxylic Acids”. Tekstil 53 (3). "Zagreb, Croatia":103-9. http://www.tekstil.hist.hr/index.php/tekstil/article/view/2882.