Fission lifetimes of Th nuclei measured by crystal blocking S.A. Karamian, J.S. Forster, J.U. Andersen, W. Assmann, C. Broude, J. Chevallier, J.S. Geiger, F. Grüner, V.A. Khodyrev, F. Malaguti and A. Uguzzoni Eur. Phys. J. A, 17 1 (2003) 49-56 Published online: 29 April 2003 DOI: 10.1140/epja/i2002-10139-0