Ivković, Ivan, Olja Čokorilo, and Snežana Kaplanović. “The Estimation of GHG Emission Costs in Road and Air Transport Sector: Case Study of Serbia”. Transport 33, no. 1 (January 26, 2018): 260-267. Accessed January 19, 2025. https://jbem.vgtu.lt/index.php/Transport/article/view/135.