H. Aldrich and D. Herker, Boundary spanning roles and organizational strutcure, Academy of Management Review, vol.2, pp.217-230, 1977.

G. Avnimelech and D. Schwartz, Entrepreneurial High-tech Cluster Development: Israel's Experience with Venture Capital and Technological Incubators, European Planning Studies, vol.15, issue.9, pp.1181-1198, 2007.

D. Baglieri and G. Lorenzoni, Closing the distance between academia and market: experimentation and user entrepreneurial processes, The Journal of Technology Transfer, vol.39, issue.1, pp.52-74, 2014.

J. L. Barbero and J. C. Casillas, Do different types of incubators produce different types of innovations, The Journal of Technology Transfer, vol.39, issue.2, pp.151-168, 2014.

N. Battard and P. Donnelly, Understanding the emergence of new institutional logics: A boundary story. 29th EGOS Colloquium, 2006.

A. Bergek and C. Norrman, Incubator best practice: A framework, Technovation, vol.28, issue.1-2, pp.20-28, 2008.

P. Bourdieu, The genesis of the concepts of habitus and field, Sociocriticism, vol.2, issue.2, pp.11-24, 1985.

P. R. Carlile, A Pragmatic View of Knowledge and Boundaries: Boundary Objects in New Product Development, Organization Science, vol.13, issue.4, p.442, 2002.

P. R. Carlile, Transferring, Translating, and Transforming: An Integrative Framework for Managing Knowledge Across Boundaries, Organization Science, vol.15, issue.5, pp.555-568, 2004.

C. Champenois, How can a cluster policy enhance entrepreneurship? Evidence from the German 'BioRegio' case, Environment and Planning C: Government and Policy, vol.30, issue.5, pp.796-815, 2012.
URL : https://hal.archives-ouvertes.fr/hal-00936094

C. Champenois, Naissance et développement de l'industrie allemande des biotechnologies. PhD thesis in Sociology, vol.463, 2006.

A. Comacchio and S. Bonesso, Boundary spanning between industry and university: the role of Technology Transfer Centres, The Journal of Technology Transfer, vol.37, issue.6, pp.943-966, 2012.

A. Croce and L. Grilli, Venture capital enters academia: an analysis of university-managed funds, The Journal of Technology Transfer, vol.39, issue.5, pp.688-715, 2014.

R. Cross and A. Parker, The hidden power of social networks: understanding how work really gets done in organizations, 2004.

D. Dohse, Cluster-Based Technology Policy-The German Experience, Industry and Innovation, vol.14, issue.1, pp.69-94, 2007.

P. Dimaggio and W. Powell, The Iron cage revisited: institutional isomorphism and collective rationality in organizational fields, American Sociological Review, vol.48, pp.147-160, 1983.

K. M. Eisenhardt, Building theories from case studies research, Academy of Management review, vol.14, issue.4, pp.535-550, 1989.

K. M. Eisenhardt and M. E. Graebner, Theory building from cases: opportunities and challenges, Academy of Management Journal, vol.50, issue.1, pp.25-32, 2007.

H. Etzkowitz, MIT and the Rise of Entrepreneurial Science, 2002.

H. Etzkowitz, Innovation in Innovation: The Triple Helix of University-Industry-Government Relations, Social Science Information, vol.42, issue.3, pp.293-337, 2003.

H. Etzkowitz, The Triple Helix: University-Industry-Government Innovation In Action, 2008.

H. Etzkowitz, StartX and the '?Paradox of Success': Filling the gap in Stanford's entrepreneurial culture, Social Science Information, vol.52, issue.4, pp.605-627, 2013.

H. Etzkowitz and M. Gulbrandsen, Public venture capital: sources of government funding for technology entrepreneurs, 2001.

H. Etzkowitz and L. Leydesdorff, The dynamics of innovation: from National Systems and "Mode 2" to a Triple Helix of university-industry-government relations, Research Policy, issue.29, pp.109-123, 2000.

J. Fache, Atlanpole: les fragilités d'une organisation spatiale et thématique, Norois, vol.200, issue.3, pp.25-37, 2006.

M. Fernandez-alles and C. Camelo-ordaz, Key resources and actors for the evolution of academic spin-offs, The Journal of Technology Transfer, vol.40, issue.6, pp.976-1002, 2015.

R. D. Fitjar and M. Gjelsvik, Organizing Product Innovation: Hierarchy, Market or TripleHelix Networks?, Triple Helix, vol.1, issue.3, 2014.

N. Fligstein and D. Mcadam, A Theory of Fields, 2012.

M. Franco and H. Haase, University-industry cooperation: Researchers' motivations and interaction channels, Journal of Engineering and Technology Management, vol.36, pp.41-51, 2015.

R. A. Friedman and J. Podolny, Differentiation of Boundary Spanning Roles: Labor Negotiations and Implications for Role Conflict, Administrative Science Quarterly, vol.37, issue.1, p.28, 1992.

D. H. Guston, Stabilizing the Boundary between US Politics and Science: The Role of the Office of Technology Transfer as a Boundary Organization, Social Studies of Science, vol.29, issue.1, pp.87-111, 1999.

D. H. Guston, Boundary Organizations in Environmental Policy and Science: An Introduction, Science, Technology, & Human Values, Special Issue: Boundary Organizations in Environmental Policy and Science, vol.26, issue.4, pp.399-408, 2001.

T. Hernes, Studying Composite Boundaries: A Framework of Analysis, Human Relations, vol.57, issue.1, pp.9-29, 2004.

W. H. Johnson, Roles, resources and benefits of intermediate organizations supporting triple helix collaborative R&D: The case of Precarn, Technovation, vol.28, issue.8, pp.495-505, 2008.

D. K. Kidwell, Principal investigators as knowledge brokers: A multiple case study of the creative actions of PIs in entrepreneurial science, Technological Forecasting and Social Change, vol.80, issue.2, pp.212-220, 2013.

H. Leendert-aalbers and W. Dolfsma, Bridging firm-internal boundaries for innovation: Directed communication orientation and brokering roles, Journal of Engineering and Technology Management, vol.36, pp.97-115, 2015.

N. Levina and E. Vaast, The Emergence of Boundary Spanning Competence in Practice: Implications for Implemetation and Use of Information Systems, MIS Quarterly, vol.29, issue.2, p.335, 2005.

M. Lundqvist, The importance of surrogate entrepreneurship for incubated Swedish technology ventures, pp.93-100, 2014.

V. Mangematin and P. O'reilly, Principal Investigators as Boundary Spanners, science and market shapers, The Journal of Technology Transfer, vol.39, issue.1, pp.1-10, 2014.

M. Mazzucatto, The Entrepreneurial State: Debunking Public vs. Private Sector Myths, 2014.

. Mesr, Ministère de l'Enseignement Supérieur et de la Recherche, Direction Générale pour la Recherche et l'Innovation, 2009.

S. Mian and A. Fayolle, Building sustainable regional platforms for incubating science and technology businesses. Evidence from US and French science and technology parks, Entrepreneurship and Innovation, vol.13, issue.4, pp.235-247, 2012.

D. C. Mowery and B. N. Sampat, Patenting and Licensing University Inventions: Lessons from the History of Research Corporation, Industrial and Corporate Change, vol.10, issue.2, pp.317-355, 2001.

C. O'kane and V. Mangematin, University technology transfer offices: The search for identity to build legitimacy, Research Policy, vol.44, issue.2, pp.421-437, 2015.

S. O'mahony and B. A. Bechky, Boundary Organizations: Enabling Collaboration among Unexpected Allies, Administrative Science Quarterly, vol.53, issue.3, pp.422-459, 2008.

J. Parker and B. Crona, On being all things to all people: Boundary organizations and the contemporary research university, Social Studies of Science, vol.42, issue.2, pp.262-289, 2012.

M. Ranga and H. Etzkowitz, Triple Helix Systems: An Analytical Framework for Innovation Policy and Practice in the Knowledge Society, Industry and Higher Education, vol.27, issue.4, pp.237-262, 2013.

F. T. Rothaermel and M. Thursby, University-incubator firm knowledge flows: assessing their impact on incubator firm performance, Research Policy, vol.34, issue.3, pp.305-320, 2005.

T. H. Rubin and T. H. Aas, Knowledge flow in Technological Business Incubators: Evidence from Australia and Israel, Technovation, vol.41, pp.11-24, 2015.

J. L. Scillitoe and A. K. Chakrabarti, The role of incubator interactions in assisting new ventures, Technovation, vol.30, issue.3, pp.155-167, 2010.

S. Shane and S. M. Dolmans, Academic entrepreneurship: Which inventors do technology licensing officers prefer for spinoffs, The Journal of Technology Transfer, vol.40, issue.2, pp.273-292, 2015.

S. L. Star and J. R. Griesemer, Institutional Ecology, `Translations' and Boundary Objects: Amateurs and Professionals in Berkeley's Museum of Vertebrate Zoology, Social Studies of Science, vol.19, issue.3, pp.387-420, 1989.

P. Svennson and M. Klofsten, A Knowledge-Based Strategy for Renewing a Declining Industrial City: The Norrköping Way, European Planning Studies, vol.20, issue.4, pp.505-525, 2012.

M. Tushman, Special Boundary roles in the innovation process, Administrative Science Quarterly, vol.22, pp.587-605, 1977.

M. L. Tushman and T. J. Scanlan, Boundary Spanning Individuals: Their Role in Information Transfer and Their Antecedents, Academy of Management Journal, vol.24, issue.2, pp.289-305, 1981.

O. Villarreal and N. Calvo, From the Triple Helix model to the Global Open Innovation model: A case study based on international cooperation for innovation in Dominican Republic, Journal of Engineering and Technology Management, vol.35, pp.71-92, 2015.

D. M. Weckowska, Learning in university technology transfer offices: transactions-focused and relations-focused approaches to commercialization of academic research, pp.62-74, 2015.

J. Wonglimpiyarat, The role of equity financing to support entrepreneurship in Asia-The experience of Singapore and Thailand, Technovation, vol.33, issue.4/5, pp.163-171, 2013.

R. K. Yin, Case study research: design and methods-4th ed, 2009.