Bjurek H, U Kjulin, BB Gustafsson and L Derek (1992). “Efficiency, Productivity and Determinants of Inefficiency at Public Day Care Centres in Sweden-Comment.” Scandinavian J Economics 94: 173-191.

Bjurek H, U Kjulin, BB Gustafsson and L Derek (1992). “Efficiency, Productivity and Determinants of Inefficiency at Public Day Care Centres in Sweden-Comment.” Scandinavian J Economics 94: 173-191.

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