Kasum, Josip, Pero Vidan, and Krešimir Baljak. “Threats and New Protection Measures in Inland Navigation”. Promet - Traffic&Transportation 22, no. 2 (January 27, 2012): 143-146. Accessed April 24, 2024. https://traffic.fpz.hr/index.php/PROMTT/article/view/173.