Yun YB, H Nakayama and T Tanino (2004). “A Generalized Model for Data Envelopment Analysis.” EJOR 157(1): 87-105.

Yun YB, H Nakayama and T Tanino (2004). “A Generalized Model for Data Envelopment Analysis.” EJOR 157(1): 87-105.

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