Seiford LM and J Zhu (1998). “Acceptance System Decision Rule with Data Envelopment Analysis.” Computer and Operations Research 25(4): 329-332.

Seiford LM and J Zhu (1998). “Identifying Excesses and Deficits in Chinese Industrial Productivity (1953-1990): A Weighted Data Envelopment Analysis Approach.” Omega 26(2): 279-296.

Seiford LM and J Zhu (1998). “On Alternative Optimal Solutions in the Estimation of Returns to Scale in DEA.” EJOR 108(1): 149-152.

Seiford LM and J Zhu (1998). “On Piecewise Loglinear Frontiers and Log Efficiency Measures.” Computer and Operations Research 25(5): 389-395.

Seiford LM and J Zhu (1998). “Sensitivity Analysis of DEA Models for Simultaneous Changes in All the Data.” JORS 49(10): 1060-1071.

Seiford LM and J Zhu (1998). “Stability Regions for Maintaining Efficiency in Data Envelopment Analysis.” EJOR 108(1): 127-139.

Seiford LM and J Zhu (1999). “Infeasibility of Super-Efficiency Data Envelopment Analysis Models.” INFOR 37(2): 174-186.

Seiford LM and J Zhu (1999). “An Investigation of Returns to Scale in Data Envelopment Analysis.” Omega 27(1): 1-11.

Seiford LM and J Zhu (1999). “Profitability and Marketability of the Top 55 US Commercial Banks.” Management Science 45(9): 1270-1288.

Seiford LM and J Zhu (1999). “Sensitivity and Stability of the Classifications of Returns to Scale in Data Envelopment Analysis.” JPA 12(1): 55-75.