J. Mavrič, P. . Tominc, and V. Bobek, “Gualitative Indicators for Measuring the Performance Development of selected Cities”, OE, vol. 60, no. 3-4, pp. 13–25, Aug. 2014, Accessed: Nov. 24, 2025. [Online]. Available: https://old.journals.um.si/index.php/oe/article/view/2280