1. http://www1.eere.energy.gov/solar/sunshot/csp.html
2. Sunshot Vision Study, U.S. DOE, Chpt. 5, (2012) – report may be obtained from the following website - http://www1.eere.energy.gov/solar/pdfs/47927.pdf
3. http://energy. gov/eere/sunshot/concentrating-solar-power
4. Advanced Reflectors;Kennedy,2010
5. http://www.solarpowerworldonline.com/2010/08/nasa-technology-translates-into-self-cleaning-solar-panels/