1. International panel on climate change, IPCC fourth assessment report: climate change. 2007.
2. Environmental Protection Agency. Standards of performance for greenhouse gas emissions for new stationary sources: electric utility generating units. Federal Register 77:26476 (2012). Federal Docket Number: EPA–HQ–OAR–2011–0660.
3. Woods MC, Capicotto PJ, Haslbeck JL, Kuehn NJ, Matuszewski M, Pinkerton LL, Rutkowski MD, Schoff RL, Vaysman V. Cost and performance baseline for fossil energy plants. Volume 1: bituminous coal and natural gas to electricity final report; August 2007; DOE/NETL-2007/1281, Revision 1.
4. The promise and problems of pricing carbon: theory and experience;Aldy;J. Environ. Dev.,2012
5. Harman GE. Regenerable removal of sulfur from gaseous or liquid mixtures. US Patent Application 12/124,530 A1; 2011.