Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria Department of Physics, University of Helsinki, Helsinki, Finland
Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria
Leibniz Institute for Tropospheric Research, Leipzig, Germany