NOVAK, Doris. Professionalization of Doctoral Education: Guide for Supervisors and Doctoral Students. Promet - Traffic&Transportation, [S. l.], v. 28, n. 6, p. 673–675, 2016. DOI: 10.7307/ptt.v28i6.2360. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/2636. Acesso em: 26 aug. 2025.