1. AKF, 1997. AKF, Energy Taxes and Subsidies in Denmark, www.akf.dk/eng/afgifter.htm.
2. Will cross-ownership re-establish market power in the Nordic power market?;Amundsen;The Energy Journal,2002
3. Essays on the Swedish electricity market;Andersson,1997
4. Becker, G., Sun, W., Huang, J.O., 2004. Liberalisation of the European electricity market: who wins? Effects of mergers and emission trading on retail prices, company profit and pollution using the EMELIE model. Masters thesis, Faculty of Earth and Life Sciences, Free University, Amsterdam, The Netherlands.
5. Bigano, A., Proost, S., 2002. The opening of the European electricity market and environmental policy: does the degree of competition matter? Center for Economic Studies, Katholieke Universiteit Leuven. http://weber.ucsd.edu/~carsonvs/papers/602.pdf.