Riva, Ascensión, et al. “Optical Brightening Agents Based on Stilbene and Distyryl Biphenyl for the Improvement of Ultraviolet Protection of Cotton Fabrics”. Tekstil, vol. 56, no. 1, Jan. 2007, pp. 7-13, https://tekstil2.hist.hr/index.php/tekstil/article/view/3338.