Antiproton and proton energy loss straggling at keV energies S. P. Møller, A. Csete, T. Ichioka, H. Knudsen, H.-P.E. Kristiansen, U. I. Uggerhøj, H. H. Andersen, P. Sigmund and A. Schinner Eur. Phys. J. D, 46 1 (2008) 89-92 Published online: 23 November 2007 DOI: 10.1140/epjd/e2007-00314-3