1. Acs, Z. J. “Small Business Economics: A Global Perspective,”Challenge, 35, November–December, 1992, pp. 38–44.
2. Acs, Z. J.; Audretsch, D. B. “Conclusion,” in Z. J. Acs and D. B. Audretsch, eds.,Small Firms and Entrepreneurship: An East-West Perspective, Cambridge, United Kingdom: Cambridge University Press, 1993.
3. __ Innovation and Small Firms, Cambridge, MA: MIT Press, 1990.
4. Audretsch, D. B.Innovation and Industry Evolution, Cambridge, MA: MIT Press, 1995.
5. __. Kleinunternehmen in der Industrieökonomiek: ein neuer Ansatz, Discussion Paper FSIV 93-26, Wissenschaftszentrum Berlin, 1993.