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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
*300  $a27, [13] s.$btab.
*4901 $aWorking paper series / National Bureau of Economic Research$v10901
*7001 $aTraitenbeng, Manuel$0(NO-TrBIB)5010286$_30009000
*830 0$aWorking paper series (National Bureau of Economic Research : trykt utg.)$x0898-2937$v10901$w999105437124702201$_13074900
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