Stoilova, Svetla Dimitrova. “A Multi-Criteria Assessment Approach for the Evaluation of Railway Transport in the Balkan Region”. Promet - Traffic&Transportation 31, no. 6 (December 19, 2019): 655–668. Accessed August 26, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2831.