Dayton, David S., Charles A. Goldman, and Steven J. Pickle."Portrait of an Emerging Industry ESCOs are recreating themselves to explore new markets and adapt to changing ones." (1999) 11.
Dayton, David S., Charles A. Goldman, and Steven J. Pickle."The Energy Services Company (ESCO) Industry: Industry and Market Trends." (1998) 17.
Goldman, Charles A., and David S. Dayton."Future Prospects for ESCOs in a Restructured Electricity Industry."ACEEE Summer Study on Energy Efficiency in Buildings (1996) 11.