By Maggioni Mario   Uberti Teodora Erika   Usai Stefano   in Industry and Innovation

ISSN:1469-8390|18|1|39-67

Routledge Ltd‎(2011)‎

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By Cainelli Giulio   Maggioni Mario A.   Uberti Teodora Erika   de Felice Annunziata   in Applied Economics Letters

ISSN:1466-4291|19|16|1609-1613

Routledge Ltd‎(2012)‎

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