1. Collaboration networks, structural holes and innovation: a longitudinal study;Ahuja;Administrative Science Quarterly,2000
2. The Marshallian industrial district as a socioeconomic notion;Becattini,1990
3. Industrial clusters and districts in the new economy: some perspectives and cases;Bellandi,2003
4. Innovating in the local system of small-medium sized enterprises;Bianchi;Entrepreneurship and Regional Development,1990
5. Knowledge, Innovation and Economic Growth: The Theory and Practice of Learning Regions;Boekema,2000