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Triple Helix indicators of knowledge-based innovation systems[J] . Loet Leydesdorff,Martin Meyer.Research Policy . 2006 (10)
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PublicationHarvester : An open-source software tool for science policy research[J] . Pierre Azoulay,Andrew Stellman,Joshua Graff Zivin.Research Policy . 2006 (7)
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Towards “meta-innovation” in Brazil: The evolution of the incubator and the emergence of a triple helix[J] . Henry Etzkowitz,José Manoel Carvalho de Mello,Mariza Almeida.Research Policy . 2005 (4)