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Aschoff, J., Knauth, P., & Rutenfranz, J. (1988). Biologische Rhythmen, in Psychobiologie. Grundlagen des Verhaltens, edited by K. Immelmann, K. R. Scherer, C. Vogel and P. Schmoock, , 219–256.
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Brainard, G. C., Lewy, A. J., Menaker, M., Fredrickson, R. H., Miller, L. S., Weleber, R. G., et al. (1985). Effect of Light Wavelength on the Suppression of Nocturnal Plasma Melatonin in Normal Volunteersa. Annals of the New York Academy of Sciences, 453(1), 376–378.
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Curtis, A. M., & FitzGerald, G. A. (2006). Central and peripheral clocks in cardiovascular and metabolic function. Ann Med, 38(8), 552–559.
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Czeisler, C., Weitzman, E., Moore-Ede, M., Zimmerman, J., & Knauer, R. (1980). Human sleep: its duration and organization depend on its circadian phase. Science, 210(4475), 1264–1267.
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Daan, S., & Aschoff, J. (1975). Circadian rhythms of locomotor activity in captive birds and mammals: Their variations with season and latitude. Oecologia, 18(4), 269–316.
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