Yu G, Q Wei, P Brockett and L Zhou (1996). “Construction of All DEA Efficient Surfaces of the Production Possibility Set under the Generalized Data Envelopment Analysis Model.” EJOR 95(3): 491-510.

Yu G, Q Wei, P Brockett and L Zhou (1996). “Construction of All DEA Efficient Surfaces of the Production Possibility Set under the Generalized Data Envelopment Analysis Model.” EJOR 95(3): 491-510.

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