ZELENIKA, Ratko; PUPAVAC, Drago. Intellectual Capital- Developmental Resource of Logistic Companies for 21’ Century. Promet - Traffic&Transportation, [S. l.], v. 15, n. 1, p. 37–41, 2003. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/2015. Acesso em: 26 aug. 2025.