Begović, Mladen, and Slavko Šarić. “Sustavski Pristup Modeliranju S pomoću Podvorbenih Modela”. Promet - Traffic&Transportation 3, no. 6 (October 11, 2012): 311–316. Accessed August 26, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/1696.