References
- ReaM.S. (editor). 2000. Illuminating Engineering Society of North America (IESNA). IESNA Lighting Handbook, 9th Edition. New York. IESNA. pp. 9–17 et seq.
- AndersonE.A. and KetchJ.M. 1924. Depreciation of lighting equipment due to dust and dirt. Transactions of the IES 19(No. 1). p.55.
- OettingR.L. and TuttleJ.W. 1953. Tests aimed at realistic maintenance factors. Illuminating Engineering 48(No. 5). p. 242.
- Illuminating Engineering Society (IES). 1959. IES Lighting Handbook, 3rd Edition. New York. IES. pp. 3–14 and pp. 9–20.
- ClarkF. 1963. Accurate maintenance factors. Illuminating Engineering. 58(No. 3). p. 124.
- ibed. discussion, pp. 130.
- ClarkF. 1966. Accurate maintenance factors - Part Two. Illuminating Engineering. 61(No. 1). p. 37.
- KaufmanJ.E. (editor). 1966. Illuminating Engineering Society (IES). IES Lighting Handbook, 4th Edition. New York: IES. pp. 9–15 et seq.
- LevinR.E. 1985. Fluorescent light loss factors. Lighting Design + Application. 15(No. 11). p. 44
- Private communication from F. Clark to one of the authors (R.E.L.) in the 1960s.
- KaufmanJ.E. (editor). 1981. Illuminating Engineering Society (IES). IES Lighting Handbook — Reference Volume. New York. IES. pp. 9–3.
- BrackettW.E. and LevinR.E. 1996. Zero-distance in-place indoor luminaire flux measurements. J of the IES. 25(No. 2). p. 173.
- BrackettW.E. and OoyenC.A. October 1993. A Proposal for Determination of Luminaire Dirt Depreciation. TR-102808. Lighting Research Institute.
- American Society for Testing and Materials (ASTM). 1989. Standard Practice for Choice of Sample Size to Estimate a Measure of Quality for a Lot or Process. ASTM Standard. E 122–89. West Conshohocken, NY.
- FrankN. July 2000. Luminaire Dirt Depreciation Study - Final Report. United States Environmental Protection Agency Report. No. CX824574–01–0.