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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209813334702201
*035  $a(NO-LaBS)14815800(bibid)
*035  $a(NO-TrBIB)020981333
*035  $a020981333-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24500$aLife cycle schooling and dynamic selection bias :$bmodels and evidence for five cohorts of American males
*260  $aCambridge, Mass.$bNBER$c1998
*300  $a55,[36] s.
*4901 $aNBER working paper series$v6385
*7001 $aCameron, Stephen V$_26741000
*7001 $aHeckman, James J.$_26741100
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v6385$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209813334702202$b2021-11-14T19:46:35Z$z990209813334702202
^