NarkewiczR. M.GravensS. N.When children complain of fatigue. Child and Family, 1966, 5, 32–36.
5.
OttJ. N.Health and light: The effects of natural and artificial light on man and other living things. New York: Pocket Books, 1973.
6.
SternglassE. J.BellS.Fallout and the decline of scholastic aptitude scores. Paper presented at the Annual Meeting of the American Psychological Association, New York, 1979.