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.

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.

Leave a Reply