[1]
Huang, X., Wang, Y., Dai, X., Luo, J.X. and Chen, J. 2020. Evaluation of port efficiency in Shanghai Port and Busan Port based on three-stage DEA model with environmental concerns. Transport. 35, 5 (Dec. 2020), 454-461. DOI:https://doi.org/10.3846/transport.2019.11465.