Bogović, Blaž, Mato Perak, and Željko Radačić. “Cijene Prometnih Usluga U Funkciji Integracijskih Procesa U Evropi”. Promet - Traffic&Transportation 2, no. 5-6 (October 11, 2012): 309–311. Accessed August 26, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/1610.