1. Sotkiewicz, P. M.Coal Units at Risk for Retirement in PJM as Result of the Proposed EPA Transport Rule and Hazardous Air Pollutant Rule: An Analysis of Operational and Physical Characteristics; 2011.
2. Celebi, M.Potential Coal Plant Retirements and Retrofits Under Emerging Environmental Regulations, Presented to MREA, St. Cloud, Minnesota; 2011.
3. U.S. Environmental Protection Agency Emissions & Generation Resource Integrated Database(eGRID 2010); (2010.
4. Brune, M.Looking Beyond the Numbers.http://sierraclub.typepad.com/michaelbrune/2012/02/100-coal-plants-looking-beyond-the-numbers.html(accessed May 17, 2012) .
5. Comparative Life-Cycle Air Emissions of Coal, Domestic Natural Gas, LNG, and SNG for Electricity Generation