1. Shadow effect of adjacent solar collectors in large scale systems;Appelbaum;Sol. Energy,1979
2. Solar Radiation;Robinson,1966
3. A Mathematical Model for the Digital Computation of the Hours of Sunshine on an Inclined Plane;Coffari,1976
4. Shading effect of collector row tilt toward the equator;Jones;Sol. Energy,1981
5. Radiative Transfer;Hottel,1967