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*1001 $aHall, Bronwyn H.$0(NO-TrBIB)2034105$_30008900
*24510$aUncovering GPTs with patent data$cBronwyn H. Hall, Manuel Trajtenberg
*260 $aCambridge, Mass.$bNational Bureau of Economic Research$c2004
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*4901 $aWorking paper series / National Bureau of Economic Research$v10901
*7001 $aTraitenbeng, Manuel$0(NO-TrBIB)5010286$_30009000
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