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| | driver and magnetosphere response, Available at: |
| | http://www.agu.org/pubs/crossref/2002/2001JA009154.shtml Accessed |
| | October 27,2010 |
| | |
| | 5. Zolotukhina, N. A., O. I. Berngardt, and B. G. Shpynev (2007), Studying |
| | magnetospheric disturbances accompanied by midlatitude coherent echo |
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| | http://www.springerlink.com/content/r0556m631656uvm3/ Accessed |
| | October 26,2010 |