Sun, Siyuan, Ronghui Bi, Zongyao Wang, and Yu Ji. “Loading and Unloading Points Identification Based on Freight Trajectory Big Data and Clustering Method”. Promet - Traffic&Transportation 35, no. 2 (April 25, 2023): 148–160. Accessed May 4, 2024. https://traffic2.fpz.hr/index.php/PROMTT/article/view/106.