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Houser, K. W. (2015). Darkness. Leukos, 11(4), 173.
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Jasser, S. A., Blask, D. E., & Brainard, G. C. (2006). Light during darkness and cancer: relationships in circadian photoreception and tumor biology. Cancer Causes Control, 17(4), 515–523.
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Kelber, A., Balkenius, A., & Warrant, E. J. (2002). Scotopic colour vision in nocturnal hawkmoths. Nature, 419(6910), 922–925.
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Kempinger, L., Dittmann, R., Rieger, D., & Helfrich-Forster, C. (2009). The nocturnal activity of fruit flies exposed to artificial moonlight is partly caused by direct light effects on the activity level that bypass the endogenous clock. Chronobiol Int, 26(2), 151–166.
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Kocifaj, M., & Solano Lamphar, H. A. (2013). Skyglow effects in UV and visible spectra: radiative fluxes. J Environ Manage, 127, 300–307.
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