Huang, Xiaoling, Yawei Wang, Xiamei Dai, Jack Xunjie Luo, and Jihong Chen. “Evaluation of Port Efficiency in Shanghai Port and Busan Port Based on Three-Stage DEA Model With Environmental Concerns”. Transport 35, no. 5 (December 11, 2020): 454-461. Accessed April 25, 2024. https://journals.vilniustech.lt/index.php/Transport/article/view/11465.