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2. Enhanced solar energy collection using reflector-solar thermal collector combinations;McDaniels;Solar Energy,1975
3. Geometric factors for plane specular reflectors;Wijeysundera;Solar Energy,1978
4. Grundläggande förutsättningar för soluppvärmning av byggnader i Skandinavien;Girdo;Basic limitations for solar heating of houses in Scandinavia, Swedish Council for Building Research,1978
5. Simulation and evaluation methods for solar energy systems;Perers;Swedish Council for Building Research,1990