Bjurek H, U Kjulin and B Gustafsson (1992). “Efficiency, Productivity and Determinants of Inefficiency at Publicday-Care-Centers in Sweden.” Scandinavian J Economics 9.
Bjurek H, U Kjulin and B Gustafsson (1992). “Efficiency, Productivity and Determinants of Inefficiency at Publicday-Care-Centers in Sweden.” Scandinavian J Economics 9.