Shcukanec, Andjelko, Dario Babic, and Hrvoje Sokol. “METHODOLOGY FOR MEASURING TRAFFIC SIGNS RETROREFLECTION”. European Scientific Journal, ESJ 10, no. 7 (March 26, 2014). Accessed February 2, 2026. https://last.eujournal.org/index.php/esj/article/view/2926.