1. CEN: EN 1838:2013 Lighting Applications – Emergency Lighting. Published by the European National Standards Institutes CEN. Brussels, Belgium (2013)
2. CIE: ISO 30061:2007(E)/CIE S 020/E:2007 Emergency Lighting. CIE, Vienna (2007)
3. Newsham, G.R., Marchand, R.G., Veitch, J.A.: Preferred surface luminances in offices, by evolution. J. Illum. Eng. Soc. 33(1), 14–29 (2004)
4. Van Ooyen, M.H.F., Van De Weijgert, J.A.C., Begemann, S.H.A.: Preferred luminances in offices. J. Illum. Eng. Soc. 16(2), 152–156 (1987)
5. Veitch, J.A.: Lighting for high-quality workplaces (NRCC-47631 – https://nrc-publications.canada.ca/eng/view/accepted/?id=7ff04ffb-4adf-4db8-93c9-81eb297c6d9d. Accessed 25 June 2019), also published in Clements-Croome, D. (ed.): Creating the Productive Workplace, 2nd edn, pp. 206–222. Taylor & Francis, London (2006)