Klecker, B., Möbius, E., Popecki, M. A., Kucharek, H., Galvin, A. B., Hilchenbach, M., Wimmer-Schweingruber, R. F., & Berger, L. (2009). Observation of high ionic charge states of iron at suprathermal energies. In Proceedings of the 31st ICRC, Lódz 2009.