1. B. Ross, Proceedings of the 1979 Photovoltaic Solar Energy Conference (Berlin, West Germany — April 23–26, 1979) p. 222.
2. B. Ross, Proceedings of 14th IEEE Photovoltaic Specialists Conference (San Diego, California — January 7–10, 1980) p. 787.
3. M. Hansen and K. Anderko, Constitution of Binary Alloys, McGraw-Hill, New York, 1958, p. 631.
4. R. H. Hopkins et al., Effect of Impurities and Processing on Silicon Solar Cells, Westinghouse Research and Development Center, Phase II Summary and Eleventh Quarterly Report, Figure 13, p. 75, July 1978.
5. Sandia Laboratories, Review of Photovoltaic Concentration Technology Development Project, Fifth Project Integration Meeting (Alburquerque, New Mexico — April 15–16, 1980).