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*1001 $aGrasdal, Astrid$d1967-$0(NO-TrBIB)59074$_26429700
*24514$aThe performance of sample selection estimators to control for attrition bias$cAstrid Grasdal
*260  $a[Bergen]$bDepartment of Economics, University of Bergen$c[2000]
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*4901 $aWorking papers in economics / Department of Economics, University of Bergen$vno. 0101
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