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*019  $bl
*035  $a(EXLNZ-47BIBSYS_NETWORK)990209832554702201
*035  $a(NO-LaBS)14722330(bibid)
*035  $a(NO-TrBIB)020983255
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*040  $aNO-TrBIB$bnob$ekatreg
*24500$aProducers and predators
*260  $aCambridge, Mass.$bNBER$c1998
*300  $a23 s.
*4901 $aNBER working paper series$v6499
*7001 $aGrossman, Herschel I.$_13074600
*7102 $aNational Bureau of Economic Research (Forente Stater)$_13074800
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v6499$w999105437124702201$_13074900
*901  $a60
*999  $aoai:nb.bibsys.no:990209832554702202$b2021-11-14T20:29:29Z$z990209832554702202
^