Open Access
J. Space Weather Space Clim.
Volume 7, 2017
Article Number E1
Number of page(s) 4
Published online 01 February 2017

© J. Lilensten et al., Published by EDP Sciences 2017

Licence Creative Commons
This is an Open Access article distributed under the terms of 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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