1. B. E. Johnson, F. Daniels, Jr., and I. A. Magnus, Response of human skin to ultraviolet light, in: Photophysiology, Vol. 4 (A. C. Giese, ed.), pp. 139–202, Academic Press, New York (1968).
2. F. Urbach (ed.), The Biologic Effects of Ultraviolet Radiation Pergamon Press, New York (1969).
3. J. H. Epstein, Adverse cutaneous reactions to the sun, in: Yearbook of Dermatology (F. D. Malkinson and R. W. Pearson, eds.), pp. 5–43, Yearbook, Chicago (1971).
4. T. B. Fitzpatrick (consult, ed.), M. A. Pathak, L. C. Harber, M. Seiji, and A. Kukita (eds.), Sunlight and Man, University of Tokyo Press, Tokyo (1974).
5. J. A. Parrish, R. R. Anderson, F. Urbach, and D. Pitts (eds.), UV-A: Biological Effects of Ultraviolet Radiation with Emphasis on Human Responses to Longwave Ultraviolet, Plenum Press, New York (1978).