1. McKinlay AF, Diffey BL (1987) A reference action spectrum for ultra-violet induced erythema in human skin. In: Passchier WF, Bosnajakovic BFM (eds) Human exposure to ultraviolet radiation: risks and regulations. Elsevier, Amsterdam, pp 83–87
2. Kerr JB, Seckmeyer G et al Surface ultraviolet radiation: past, present and future. In: Chapter 7 of Scientific assessment of ozone depletion: 2006, Global ozone research and monitoring project, report no. 50. World Meteorological Organization, Geneva
3. ICNRP/UNEP (1995) Global solar UV Index. Oberschleissheim, Germany
4. CIE (1970) Internationales Wörterbuch der Lichttechnik, Commission International de l’Éclairage, Paris
5. WMO (2007) Scientific Assessment of Ozone Depletion: 2006, vol Global ozone research and monitoring project – report no. 50. (World Meteorological Organization), Geneva