Beronja, Jasminka, and Dubravka Raffaelli. “Elastomer Fibers on the Basis of Polyurethane - Elasthan Fibers”. Tekstil 43, no. 2 (February 28, 1994): 72–79. Accessed October 21, 2025. http://tekstil.hist.hr/index.php/tekstil/article/view/1191.