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2. G.N.Fatseas, ‘Computer-Aided Recording of Sky Luminance and Illuminance Data Over an Extended Period of Time in Greece’, Proc. CIBSE Nat. Lighting Cont., Cambridge 1988, pp. 316–330.
3. Commission Internationale de l’Eclairage, (CIE), “International Recommendations for the Calculation of Daylight”, CIE No. 16, 1970.
4. Commission Internationale de l’Eclairage, (CIE), “Standarization of Luminance Distribution on Clear Skies”, CIE No. 22, 1973.
5. G.Gillette, W.Pierpoint, S.Treado, ‘A General Illuminance Model for Daylight Availability’, Journal of Illuminating Engineering Society of North America, July 1984, pp. 330–340.