Electronic stopping cross sections for protons in Al2O3: an experimental and theoretical study M. Behar, R.C. Fadanelli, L.C.C.M. Nagamine, E.D. Cantero, G.H. Lantschner, J.C. Eckardt, N.R. Arista, R. Garcia-Molina and I. Abril Eur. Phys. J. D, 66 9 (2012) 247 Published online: 28 September 2012 DOI: 10.1140/epjd/e2012-30364-1