Galović, Borivoj, Goran Novoselić, and Danko Čurepić. “Challenges of Transition from Joint Aviation Authorities 1 Federal Aviation Administration . ”. Promet - Traffic&Transportation 15, no. 4 (July 25, 2003): 277–281. Accessed August 27, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2038.