SEVER, Božidar. Nedostatak brze pošte - naš dug prema Europi. Promet - Traffic&Transportation, [S. l.], v. 4, n. 1, p. 21–26, 2012. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/1701. Acesso em: 27 aug. 2025.