Babić, Dario, Darko Babić, and Dragana Macura. “Model for Predicting Traffic Signs Functional Service Life – The Republic of Croatia Case Study”. Promet - Traffic&Transportation 29, no. 3 (June 27, 2017): 343–349. Accessed August 26, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2671.