Cooper WW, KS Park and G Yu (2001). “Idea (Imprecise Data Envelopment Analysis) with CMDS (Column Maximum Decision Making Units).” JORS 52(2): 176-181.

Cooper WW, G Bisheng and L Shanling (2001). “Note: Alternative Treatments of Congestion in DEA: A Response to the Cherchye, Kuosmanen and Post Critique.” EJOR 132(1): 81-87.

Cooper WW, H Deng, Z Huang and SX Li (2002). “Chance Constrained Programming Approaches to Technical Efficiencies and Inefficiencies in Stochastic Data Envelopment Analysis.” JORS 53(12): 1347-1356.

Cooper WW, H Deng, Z Huang and SX Li (2004). “Chance Constrained Programming Approaches to Congestion in Stochastic Data Envelopment Analysis.” EJOR 155(2): 487-501.

Cooper WW, H Deng, ZM Huang and SX Li (2002). “A One-Model Approach to Congestion in Data Envelopment Analysis.” Socio-Econ Plan Sci 36(4): 231.

Cook WD, M Kress and LM Sheiford (1996). “Data Envelopment Analysis in the Presence of Both Quantitative and Qualitative Factors.” JORS 47(7): 945-953.

Cooper WW, A Gallegos and MH Granof (1995). “A Delphi Study of Goals and Evaluation Criteria of State and Privately Owned Latin-American Airlines.” Socio-Econ Plan Sci 2: 273-285.

Cook WD and Y Roll (1988). “R-and-D Project Selection – Productivity Considerations.” R and D Management 1: 251-256.

Cooper WW, B Gu and S Li (2001). “Comparisons and Evaluations of Alternative Approaches to the Treatment of Congestion in DEA.” EJOR 132(1): 62-74.

Cook WD, Y Roll and A Kazakov (1990). “A DEA Model for Measuring the Relative Efficiency of Highway Maintenance Patrols.” INFOR 2: 113-124.