Magnesium suppression for 26Al measurements using AlO- ions - Arazi, A.; Faestermann, T.; Fernández Niello, J.O.; Frischke, D.; Knie, K.; Korschinek, G.; Maier, H.J.; Richter, E.; Rugel, G.; Wallner, A. (Nuclear Instruments & Methods in Physics Research Section B, 2004)