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*035  $a(EXLNZ-47BIBSYS_NETWORK)990209722614702201
*035  $a(NO-LaBS)14089860(bibid)
*035  $a(NO-TrBIB)020972261
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*040  $aNO-TrBIB$bnob$ekatreg
*24500$aSpurts in union growth :$bdefining moments and social processes$cRichard B. Freeman
*260  $aCambridge, Mass.$bNBER$c1997
*300  $a63 s.
*4901 $aNBER working paper series$v6012
*7001 $aFreeman, Richard B.$_30588700
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v6012$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209722614702202$b2021-11-14T21:11:42Z$z990209722614702202
^