References
- Design Practice Committee of the IES, “An Interim Report Relating the Lighting Design Procedure to Effective Energy Utilization”, Lighting Design & Application, September 1975, Vol. 5, No. 9, p. 34.
- A Unified Framework of Methods for Evaluating Visual Performance Aspects of Lighting, Publication CIE No. 19 (TC 3.1) 1972, Commission Internationale de l'Éclairage, Paris, France.