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Advances in Astronomy
Volume 2012 (2012), Article ID 607172, 8 pages
http://dx.doi.org/10.1155/2012/607172
Research Article

Long-Term Cosmic Ray Variability and the CME-Index

Faculty of Physics, National and Kapodistrian University of Athens, Zografos, 15784 Athens, Greece

Received 25 September 2012; Accepted 28 November 2012

Academic Editor: Karel Kudela

Copyright © 2012 Helen Mavromichalaki and Evangelos Paouris. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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