1. Aldrich, H. E., & Zimmer, C. (1986). Entrepreneurship through social networks. In D. L. Sexton, and R. W. Smilor, R. W. (Eds.), The art and science of entrepreneurship (pp. 3–23). Cambridge, MA: Ballinger.
2. Ardichvili, A., Cardozo, R., & Ray, S. (2003). A theory of entrepreneurial opportunity identification and development. Journal of Business Venturing, 18, 125–144.
3. Audretsch, D. (1995). Innovation and industry evolution. Cambridge, MA: MIT Press.
4. Autio, E., & Klofsten, M. (1998). A comparative study of two European business incubators. Journal of Small Business Management, 36(1), 30–43.
5. Bozeman, B. (2000). Technology transfer and public policy: A review of research and theory. Research Policy, 29, 627–655.