1. Department of Physics Augsburg University Minneapolis MN USA
2. Institute of Physics of the Earth Moscow Russia
3. Department of Climate and Space Sciences and Engineering University of Michigan Ann Arbor MI USA
4. Athabasca University Observatories Athabasca University Athabasca Alberta Canada
5. ESS IGPP, UCLA Los Angeles CA USA
6. Department of Physics University of Alberta Edmonton Alberta Canada
7. Geomagnetic Laboratory Natural Resources Canada Ottawa Ontario Canada
8. Earth Planetary and Space Sciences University of California Los Angeles CA USA
9. Department of Geoinformation Systems Ufa State Aviation Technical University Ufa Russia