Charnes A and S Zlobec (1989). “Stability of Efficiency Evaluations in Data Envelopment Analysis.” ZOR, Methods and Models of Operations Research 33(3): 167-179.
Charnes A and S Zlobec (1989). “Stability of Efficiency Evaluations in Data Envelopment Analysis.” ZOR, Methods and Models of Operations Research 33(3): 167-179.