1. Miller, S.L. and Orgel, L.E. (1974) The origins of life on the earth, Prentice Hall Inc., Eaglewood Cliffs (NJ).
2. Sagan, C. and Pollack, J.B. (1974) Differential transmission of sunlight on Mars: biological implications, Icarus, 21: 490–495.
3. Jagger, J. (1967) Introduction to research in ultraviolet photobiology, Prentice-Hall Inc., Eaglewood Cliffs (NJ).
4. Feynman, R.P., Leighton, R.B. and Sands, M. (1967) The Feynman Lectures on Physics, Vol. III, Addison-Wesley Publishing Company, Reading (MA).
5. Kielbassa, C., Roza, L. and Epe, B. (1997) Wavelength dependence of oxidative DNA damage induced by UV and visible light, Carcinogenesis, 18: 811–816.