Soleimani-damaneh M, GR Jahanshahloo and M Reshadi (2006). “On the Estimation of Returns-to-Scale in FDH Models.” EJOR 174(2): 1055-1059.

Soleimani-damaneh M, GR Jahanshahloo and M Reshadi (2006). “On the Estimation of Returns-to-Scale in FDH Models.” EJOR 174(2): 1055-1059.

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