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*1001 $aGentzlow, Matthew$0(NO-TrBIB)4103664$_33842300
*24514$aThe rise of the fourth estate :$bhow newspapers became informative and why it mattered$cMatthew Gentskow, Edward L. Glaeser, Claudia Goldin
*260  $aCambridge, Mass.$bNational Bureau of Economic Research$c2004
*300  $a54 s.$bill.
*4901 $aWorking paper series / National Bureau of Economic Research$v10791
*7001 $aGlaeser, Edward$d1967-$0(NO-TrBIB)2045747$_33201200
*7001 $aGoldin, Claudia$0(NO-TrBIB)90728027$_22525600
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v10791$w999105437124702201$_13074900
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