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2. Operating efficiency evaluation of port listed companies based on factor analysis and SBM super-efficiency model;Luo;Science Technology and Industry,2016
3. Analysis of the efficiency of major coastal ports considering the unexpected output;Yonggui;Gansu Science and Technology,2020
4. Research on port Efficiency of Free Trade Zone Based on Super-SBM-Tobit Model(Master’s dissertation;Guo,2020
5. Evaluating the operational efficiency of major ports in the Asia-Pacific region using data envelopment analysis