Podinovski VV (2004). “Bridging the Gap between the Constant and Variable Returns-to-Scale Models: Selective Proportionality in Data Envelopment Analysis.” JORS 55(3): 265-276.

Podinovski VV (2004). “Bridging the Gap between the Constant and Variable Returns-to-Scale Models: Selective Proportionality in Data Envelopment Analysis.” JORS 55(3): 265-276.

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