5Chesbrough, H., 2003a, The era of open innovation, Sloan Management Review Summer, 35-41.
6Chesbrough, H., 2003b, Open Innovation,Cambridge, Mass., Harvard University Press.
7Cohen, W. M., & Levinthal, D. A., 1990,Absorptive Capacity: A New Perspective of Learning and Innovation, Administrative Science Quarterly, 35, 128-152.
8Henderson, R., & Clark, K. B.,1990,Architectual innovation.. The reconfiguration of existing product technologies and the failure of established firms, Administrative Science Quarterly,35(1), 9-30.
9Koput, K. W. ,1997, A Chaotic Model of Innovative Search. Some Answers, Many Questions, Organization Science, 8(5), 528-542.
10Laursen, K., & Foss, N.,2003, New HRM Practices, Complementarities, and the Impact on Innovation Performance, Cambridge Journal of Economics, 27(2), 243.