Magnetic studies on mass-selected iron particles R. P. Methling, V. Senz, E. D. Klinkenberg, Th. Diederich, J. Tiggesbäumker, G. Holzhüter, J. Bansmann and K. H. MeiwesBroer Eur. Phys. J. D, 16 1-3 (2001) 173-176 Published online: 15 September 2001 DOI: 10.1007/s100530170085