Lovrić, Ivan, Dražen Cvitanić, and Deana Breški. “Modelling Free Flow Speed on Two-Lane Rural Highways in Bosnia and Herzegovina”. Promet - Traffic&Transportation 26, no. 2 (April 26, 2014): 121–127. Accessed August 26, 2025. https://traffic2.fpz.hr/index.php/PROMTT/article/view/2455.