1. Börjesson P. Environmental effects of energy crop cultivation in Sweden—I: Identification and quantification. Biomass and Bioenergy 1999;16:137--154
2. Söderqvist T. Ekonomisk värdering av miljön: metoder och svenska erfarenheter (Economic valuation of the environment: methods and Swedish experience). Official Report of the Swedish Government, Fritzes, Stockholm, 1996
3. Intergovernmental Panel of Climate Change (IPCC). Climate change 1995. The science of climate change—contribution of working group III to the second assessement of the IPCC, Chapter 6. Cambridge University Press, Cambridge, 1995
4. Intergovernmental Panel of Climate Change (IPCC). Climate change 1995. The science of climate change—contribution of working group III to the second assessement of the IPCC. Chapter 4. Cambridge: Cambridge University Press, 1995
5. European Commission. ExternE—Externalities of Energy, Vol. 2: Methodology. Directorate-General XII, Science, Research and Development, Luxembourg, 1995