Pašagić Škrinjar, Jasmina, Miroslav Drljača, and Zvonko Kavran. “Logistics of International Express Shipping and Air Traffic”. Promet - Traffic&Transportation 25, no. 3 (1): 209-215. Accessed April 29, 2024. http://traffic.fpz.hr/index.php/PROMTT/article/view/1322.