Cosmic-ray-induced 63Ni --A potential confounder of fast-neutron-induced 63Ni in copper samples from HiroshimaW. Rühm, G. Rugel, T. Faestermann, K. Knie, A. Wallner, B. Heisinger, E. Nolte, A.A. Marchetti, R.E. Martinelli, K.L. Carroll and G. KorschinekEur. Phys. J. A, 17 4 (2003) 633-639DOI: https://doi.org/10.1140/epja/i2003-10034-2