Ultrasensitive detection method for primordial nuclides in copper with Accelerator Mass Spectrometry. - Famulok, N.; Faestermann, T.; Fimiani, L.; Gómez-Guzmán, J.M.; Hain, K.; Korschinek, G.; Ludwig, P.; Schönert, S. (Nuclear Instruments & Methods in Physics Research Section B, 2015)