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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209903084702201
*035  $a(NO-LaBS)13738086(bibid)
*035  $a(NO-TrBIB)020990308
*035  $a020990308-47bibsys_network
*040  $aNO-TrBIB$bnob$ekatreg
*24500$aImmigration and welfare magnets
*260  $aCambridge, Mass.$bNBER$c1998
*300  $a32,[10] s.
*4901 $aNBER working paper series$v6813
*7001 $aBorjas, George J.$_31712900
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v6813$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209903084702202$b2021-11-14T20:30:48Z$z990209903084702202
^