Pavlin, Stanislav, Arijana Modić, and Matija Bračić. “South East Europe Hub and Spoke Air Network Reconfiguration”. Promet - Traffic&Transportation 29, no. 1 (February 22, 2017): 121-129. Accessed November 22, 2024. https://traffic.fpz.hr/index.php/PROMTT/article/view/2194.