1. On the impact of CO2 emission-trading on power generation emissions;Chappin;Technological Forecasting and Social Change,2009
2. ECON, 2002. Marginal elproduktion och CO2-utsläpp i Sverige. Report 19/02. ECON Senter for økonomisk analyse. Available at 〈http://www.econ.no〉.
3. Marginal or average data—ethical implications;Ekvall,2001
4. Normative ethics and methodology for life cycle assessment;Ekvall;Journal of Cleaner Production,2005
5. European Council, 2007. Energy Policy for Europe (EPE), European Council Action Plan (2007–2009). Annex I to European Council 8–9 March 2007, Presidency Conclusions.