Bjurek H and L Hjalmarsson (1995). “Productivity in Multiple-Output Public-Service – a Quadratic Frontier Function and Malmquist Index Approach.” J Public Economics 5: 447-460.

Bjurek H and L Hjalmarsson (1995). “Productivity in Multiple-Output Public-Service – a Quadratic Frontier Function and Malmquist Index Approach.” J Public Economics 5: 447-460.

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