BUKLJAŠ, Zdravko. Technical and Technological Forms of Transportation Means in 21st Century Europe ... Promet - Traffic&Transportation, [S. l.], v. 11, n. 2-3, p. 163–171, 2012. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/2331. Acesso em: 27 aug. 2025.