ŠTEFANČIĆ, Gordana; KROBOT, Ivana; HRŽENJAK, Zlatko. The Instruments of Transport Policy. Promet - Traffic&Transportation, [S. l.], v. 18, n. 5, p. 379–386, 2006. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/2192. Acesso em: 27 aug. 2025.