1. Sustainable Development of the Biosphere;Clark,1986
2. Climate Change—The IPCC Scientific Assessment;Houghton,1990
3. Energy for a Sustainable World;Goldemberg,1988
4. Effekter av svavel- och kvävebelastning på skogsmark, ytoch grundvatten;National Swedish Environment Protection Board,1990
5. The Greenhouse Gases: Emissions and Countermeasures in an International Perspective;National Swedish Environment Protection Board,1991