- Josef Boska, Institute of Atmospheric Physics, Czech Academy of Sci
- Alla Belikova, Space Research Institute - RAN
- Katya Georgieva, STIL-BAS
- Våneta Guineva, STIL-BAS
- Dimitar Danov, STIL-BAS
- Irina Despirak, Polar Geophysical Institute, Apatity, Russia
- Boian Kirov, STIL-BAS
- Georgeta Maris, Institute of Geodynamics, Romanian Academy
- Zbysek Mosna, Institute of Atmospheric Physics, Czech Academy of Sci
- Rumen Nedkov, Space Research Institute - BAS
- Dennis Novikov, Space Research Institute - RAN
- Petra Sauli, Institute of Atmospheric Physics, Czech Academy of Sci
- Teresa Sindelarova, Institute of Atmospheric Physics, Czech Academy of Sci
- Georgi Stanev, Space Research Institute - BAS
- Rolf Werner, STIL-BAS
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