Aksoy, Berna, and Mustafa Gursoy. “A Different Nested Logit Model Structure Consistent With Random Utility Theory for Various Freight Types – A Case Study for Istanbul”. Promet - Traffic&Transportation 35, no. 6 (December 20, 2023): 917–931. Accessed May 21, 2024. https://traffic2.fpz.hr/index.php/PROMTT/article/view/353.