M. Buddhikot, P. Kolodzy, S. Miller, K. Ryan, and J. Evans. World of Wireless Mobile and Multimedia Networks, 2005. WoWMoM 2005.
Sixth IEEE International Symposium on a, page 78-85. (June 2005)
H. Aurass, K. Klein, and G. Mann. Solar Dynamic Phenomena and Solar Wind Consequences, the Third SOHO Workshop, volume 373 of ESA Special Publication, page 95. (December 1994)