Vukić, Luka, Lidija Runko Luttenberger, Katarina Balić, and Merica Slišković. “External Costs on The Island of Vis: Comparison of Two Traffic Modes”. Transactions on Maritime Science 8, no. 2 (October 21, 2019): 230 - 234. Accessed October 22, 2020. https://www.toms.com.hr/index.php/toms/article/view/272.