Commission International de.l'Eclairage (International Commission on Illumination), 1970, International Lighting Vocabulary, Publication CIE No. 17 (E1.1) Paris.
2.
Sliney, D. and Wolbarsht, M., (1980). Safety with Lasers and Other Optical Sources. Plenum Press, New York, p 192.
3.
Ibid. p 211.
4.
Ibid. p 175.
5.
Ibid. pp 178-9.
6.
Hughes, D. (1978). Hazards of Occupational Exposure to Ultraviolet Radiation. Occupational Hygiene Monograph No. 1, University of Leeds Industrial Service Limited.
7.
Hawk, J.L.M. (1983). Sunbeds. BMJ Vol. 286 p 329.
8.
National Academy of Sciences ( 1975): Biological Impacts of Increased Intensities of Solar Ultraviolet Radiation. A Report of the Ad Hoc Panel of the National Academy of Sciences and of Engineering, Washington DC.
9.
Retsas, S. (1983). Sunbeds and Melanoma. BMJ Vol. 286 p 892.
10.
Hersey, P. et al. (1983). Immunological Effects of Solarium Exposure . Lancet 12 March 1983 p 545.
11.
Illis. L. (1964). On Porphyria and the Aetiology of Werewolves. Proc. Roy. Soc. Med. Vol. 57 pp 23-26.
12.
Diffey, B.L. (1979). The Calculation of the Spectral Distribution of Natural Ultraviolet Radiation under Clear Day Conditions . Phys. Med. Biol. Vol. 22, Part 2, pp 309-316.
