Bibliography
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Eckhardt, Roger. "Ionizing Radiation - It's Everywhere!" Los Alamos Science. 1995: 1-49.
Hurley, Cecile N. and William L. Masterton. Chemistry: Principles and Reactions, Fifth Edition. Belmont: Brooks/Cole-Thomson Learning, 2004.
http://www.uic.com.au/ral.htm
http://www.ims.uaf.edu/NEWNET/index.html