1. Abt, 2002. Particulate-Related Health Impacts of Eight Electric Utility Systems. Abt Associates, Inc., Bethesda, MD.
2. Energy pay-back time and CO2 emissions of PV systems;Alsema;Progress in Photovoltaics: Research and Applications,2000
3. Judgment in Managerial Decision Making;Bazerman,1994
4. Bird, L., Swezey, B., 2001. Estimates of Renewable Energy Developed to Serve Green Power Markets. National Renewable Energy Laboratory, Golden, CO.
5. Bolinger, M., Wiser, R., Golove, W., 2002. Quantifying the value that wind power provides as a hedge against volatile natural gas prices. Proceedings of the Windpower 2002, Portland, OR, 2–5 June.