R. Šurina and M. Andrassy, “Investigation of Modification of Flax Fibers Using Citric Acid”, Tekstil, vol. 56, no. 11-12, pp. 659–669, Dec. 2007, Accessed: Apr. 21, 2026. [Online]. Available: https://tekstil.hist.hr/index.php/tekstil/article/view/3465