Authors
Alf Lindroos
Åbo Akademi University, Faculty of Science and Engineering, Turku, Finland
Jan Heinemeier
AMS Centre, Aarhus University, Department of Physics and Astronomy, Aarhus, Denmark
Åsa Ringbom
Åbo Akademi University, Faculty of Arts, Psychology and Theology, Turku, Finland
Thomas Schrøder Daugbjerg
AMS Centre, Aarhus University, Department of Physics and Astronomy, Aarhus, Denmark
Irka Hajdas
Laboratory of Ion Beam Physics, ETH Swiss Federal Institute of Technology, Zurich, Switzerland