Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/30322 
Year of Publication: 
2010
Series/Report no.: 
Fraunhofer ISI Discussion Papers - Innovation Systems and Policy Analysis No. 23
Publisher: 
Fraunhofer-Institut für System- und Innovationsforschung ISI, Karlsruhe
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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