Forsund FR (1992). “A Comparison of Parametric and Non-Parametric Efficiency Measures: the Case of Norwegian Ferries.” in Gulledge TR and CAK Lovell (eds.) International Applications of Productivity and Efficiency Analysis, Kluwer Academic Publishers.

Forsund FR (1992). “A Comparison of Parametric and Non-Parametric Efficiency Measures: the Case of Norwegian Ferries.” in Gulledge TR and CAK Lovell (eds.) International Applications of Productivity and Efficiency Analysis, Kluwer Academic Publishers.

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