Sengupta JK (2004). “The Survivor Technique and the Cost Frontier: A Nonparametric Approach.” Int J Prod Econ 87(2): 185-193.

Sengupta JK (2004). “The Survivor Technique and the Cost Frontier: A Nonparametric Approach.” Int J Prod Econ 87(2): 185-193.

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