1. Economic Development Administration, US Department of Commerce. Cluster-based economic development: a key to regional competitiveness . (Economic Development Administration, Washington, DC; October 1997).
2. Economic Development Administration, US Department of Commerce., Impact of incubator investments. (NBIA Publications, Athens, OH; August 1997).
3. Association of University Related Research Parks., Bioparks survey and directory. (Fitzsimons Redevelopment Authority, AURRP, Washington, DC; 1999).