1. A. B. Meinel andM. P. Meinel:Applied Solar Energy, an Introduction (Reading, Mass., 1976).
2. Ari Rabl:Solar Energy 18, 93 (1976).
3. Sandia Laboratory Report, SLA 73-0950 (1973).
4. Sandia Laboratory Report, SLA 73-5318 (1973).
5. Sandia Laboratory and Texas 32 Kwe and 200 Kwe total energy ERDA facilities (USA), existing and under construction.