BOKOR, Zoltán. Elaborating Cost and Performance Management Methods in Transport. Promet - Traffic&Transportation, [S. l.], v. 21, n. 3, p. 217–224, 2012. DOI: 10.7307/ptt.v21i3.228. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/1508. Acesso em: 27 aug. 2025.