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*1001#$aEkern, Steinar$0(NO-TrBIB)90278966$_23194000
*24510$aTime dominance efficiency analysis$cby Steinar Ekern
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*4901#$aDiscussion paper / Norwegian School of Economics and Business Administration$v1980:07
*830#0$aDiscussion paper (Norges handelshøyskole : trykt utg.)$x0801-1125$v1980:07$w998120392114702201$_14354600
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