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*24500$aMedia market concentration, advertising levels, and ad prices$cby Simon P. Anderson ... [et al.]
*260  $aBergen$bInstitute for Research in Economics and Business Administration$c2012
*300  $a10 bl.
*4901 $aWorking paper / Institute for Research in Economics and Business Administrion$vno. 2/12
*7001 $aAnderson, Simon P.$0(NO-TrBIB)90650372$emedarb.$_32555700
*830 0$aWorking paper (Samfunns- og næringslivsforskning : trykt utg.)$vno. 2/12$w990208439844702201$_13111800
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