Jahanshahloo GR, FH Lotfi and M Zohrehbandian (2005). “Notes on Sensitivity and Stability of the Classifications of Returns to Scale in Data Envelopment Analysis.” JPA 23(3): 309-313.
Jahanshahloo GR, FH Lotfi and M Zohrehbandian (2005). “Notes on Sensitivity and Stability of the Classifications of Returns to Scale in Data Envelopment Analysis.” JPA 23(3): 309-313.