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The Tax Man Cometh - But is he Efficient?
Førsund, Finn R., (2006)
Far out or alone in the crowd: Classification of selfevaluators in DEA
Edvardsen, Dag Fjeld, (2009)
Productivity development of Norwegian institutions of higher education 2004 - 2013
Edvardsen, Dag Fjeld, (2016)