Cosmic Ray Muons and the Muon Lifetime. (2013, October 14). Retrieved July 17, 2014, from http://www.phys.ufl.edu/courses/phy4803L/group_I/muon/muon.pdf
Houseman, J. & Fehr, A. (1999, October 12). Listening For Cosmic Rays. Retrieved July 22, 2014, from http://neutronm.bartol.udel.edu/listen/main.html
Liu, L., & Solis, P. (2007, November 18). The Speed and Lifetime of Cosmic Ray Muons. Retrieved July 17, 2014, from http://web.mit.edu/lululiu/Public/pixx/not-pixx/muons.pdf
Muon basics. (n.d.). . Retrieved July 17, 2014, from http://www2.fisica.unlp.edu.ar/~veiga/experiments.html#mass
Ramesh, N., Hawron, M., Martin, C., & Bachri, A. (2011, January 1). Flux Variation of
Cosmic Muons. Retrieved July 18, 2014, from http://arxiv.org/pdf/1203.0101.pdf
Russell, R. (2009, March 30) Temperature in the Stratosphere. Retrieved July 22, 2014, from
http://www.windows2universe.org/earth/Atmosphere/stratosphere_temperature.html
Schirber, M. (2009, August 27). Death Rays From Space: How Bad Are They? Retrieved July 17,
2014, from http://www.space.com/7193-death-rays-space-bad.html
U.s. standard atmosphere. In (2012). W. Haynes (87 Ed.), CRC Handbook of Chemistry and
Physics (pp. 14-19, 14-25). Retrieved from http://www.hbcpnetbase.com/