IVANKOVIĆ, Božidar. International Conference on Mathematical Inequalities and Nonlinear Functional Analysis with Applications. Promet - Traffic&Transportation, [S. l.], v. 24, n. 6, p. 547, 2012. DOI: 10.7307/ptt.v24i6.1206. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/2377. Acesso em: 27 aug. 2025.