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100   $a20030910d1999----km-y0itay50------ba
101 0 $aeng
102   $aIT
200 1 $a<<The >>role of specialisation and diversity externalities in the agglomeration of innovative activities$fRaffaele Paci, Stefano Usai
210   $a[S.l.$cs.n.]$d1999
225 1 $aContributi di ricerca$fCRENoS, Centro ricerche economiche Nord Sud, Università degli studi di Cagliari$v99.15
610 0 $aInnovazioni tecnologiche$aAspetti economici
700  1$aPaci,$bRaffaele$0115539
701  1$aUsai,$bStefano$0122755
801  0$aIT$bUNINA$gRICA$2UNIMARC
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912   $a990003185940403321
952   $aPaper$fSES
959   $aSES
996   $aRole of specialisation and diversity externalities in the agglomeration of innovative activities$9452190
997   $aUNINA