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*1001 $aCheng, Xiaomei$d1987-$0(NO-TrBIB)14042582$_78527100
*24510$aCost efficiency analysis based on the DEA and StoNED models :$bcase of Norwegian electricity distribution companies$cXiaomei Cheng, Endre Bjørndal, Mette Bjørndal
*260  $aBergen$bNorwegian School of Economics, Department of Business and Management Science$c2014
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*4901 $aDiscussion paper / Norwegian School of Economics, Department of Business and Management Science$vFOR 28 2014
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*7001 $aBjørndal, Mette$0(NO-TrBIB)15786$_17681400
*830 0$aDiscussion paper (Norges handelshøyskole. Institutt for foretaksøkonomi : trykt utg.)$x1500-4066$vFOR 28 2014$w999804367294702201$_14051700
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