Achermann, P., Werth, E., Dijk, D. J.,& Borbély, A. A.(1995). Time course of sleep inertia after nighttime and daytime sleep episodes. Archives Italiennes de Biologie, 134, 109-119.
Angus, R. G., Heslegrave, R. J.,& Myles, W. S.(1985). Effects of prolonged sleep deprivation, with and without chronic physical exercise, on mood and performance. Psychophysiology, 22, 276-282.
Asplund, R.(1996). Daytime sleepiness and napping amongst the elderly in relation to somatic health and medical treatment. Journal of Internal Medicine, 239, 261-267.
Arnaud, M. J.(1998). Pharmacokinetics and metabolism of caffeine. In J. Snel,& M. M. Lorist (Eds.), Nicotine, caffeine, and social drinking. Amsterdam: Harwood Academic, pp. 153-165.