References on Light's Inhibition of Melatonin Production

• Cardinali, D.P., Larin, F., and Wurtman, R.J. Control of the rat pineal gland by light spectra. Proc. Nat. Acad. Sci. USA, 69(8): 2003-2005, 1972.
• Kerenyi, N.A., Pandula, E., and Feuer, G. Why the incidence of cancer is increasing: the role of 'light pollution'. Med. Hypotheses, 33(2): 75-78, 1990.