1. L.M. Fraas, W.R. Pyle, P.R. Ryason, Concentrated and piped sunlight for indoor illumination. Appl. Opt. 22, 578 (1983)
2. See
www.ornl.gov/hybridlighting/partnership.htm
3. L.M. Fraas, W.E. Daniels, J. Muhs, Infrared Photovoltaics for Combined Solar Lighting and Electricity for Buildings. Proceedings of 17th European PV Solar Energy Conference, Munich, Germany, 22–26 October 2001
4. L.M. Fraas, J.E. Avery, Takashi Nakamura, Electricity from Concentrated Solar IR in Solar Lighting Applications. Proceedings of 29th IEEE PV Specialist Conference, p. 963 (2002)