1. Committee on Research Priorities for Airborne Particulate Matter. Research Priorities for Airborne Particulate Matter: 1. Immediate Priorities and a Long-Range Research Portfolio. Washington DC:National Academy Press 1998.
2. U.S. EPA. The Benefits and Costs of the Clean Air Act: 1990 to 2010. Washington DC:U.S. Environmental Protection Agency Office of Air and Radiation 1999.
3. European Commission. ExternE: External Costs of Energy Vol 3: Coal and Lignite. Brussels:Directorate-Generale XII Science Research and Development 1995.
4. Modeling the Benefits of Power Plant Emission Controls in Massachusetts
5. Abt Associates ICF Consulting EH Pechan Associates. The Particulate-Related Health Benefits of Reducing Power Plant Emissions. Bethesda MD:Abt Associates 2000. Available: http://www.cleartheair.org/fact/ mortality/mortalityabt.pdf [cited 17 October 2000].