The search for the existence of 229mTh at IGISOL V. Sonnenschein, I. D. Moore, S. Raeder, A. Hakimi, A. Popov and K. Wendt Eur. Phys. J. A, 48 4 (2012) 52 Published online: 23 April 2012 DOI: 10.1140/epja/i2012-12052-3