1. Innovation, market structure and firm size;Acs;Review of Economics and Statistics,1987
2. Innovation in large and small firms: An empirical analysis;Acs;American Economic Review,1988
3. Innovation and small firms;Acs,1990
4. New-Firm survival and the technological regime;Audretsch;Review of Economics and Statistics,1991
5. Uses and limitations of USEEM/USELM data;Boden,1985