1. Akerstedt, T., 1985. Adjustment of physiological circadian rhythms and the sleep–wake cycle to shift work. In: Folkard, S. (Ed.), Hours of Work, Wiley.
2. Ariens, M., 2005a. Human lighting demands, healthy lighting in an office environment. Thesis, University of Technology, Eindhoven, The Netherlands.
3. Ariens, M., 2005b. Human lighting demands, healthy lighting in an office environment. Public presentation of Thesis, University of Technology, Eindhoven, The Netherlands.
4. Phototransduction by retinal ganglion cells that set the circadian clock;Berson;Science,2002
5. Light treatment for sleep disorders. Consensus Report VII Jet lag;Boulos;J. boil. rhythm,1995