1. Simulation of complex window components using a photon-tracing simulation program;Fontoynont,1987
2. New York State Energy Research and Development Authority (1989): Daylight Availability Resource Assessment Program: Phase IV Preparation of a Climatological Daylight Availability Data Base,1989
3. DOE 2.1c Simulation Program,1985
4. Standardization of Luminous Efficacy Distribution on Clear Skies;Commission Internationale de l'Eclairage,1973
5. Illumination from a nonuniform sky;Moon;Illuminating Engineering,1942