Shape changes and test of the critical-point symmetry X(5) in N = 90 nuclei A. Dewald, O. Möller, D. Tonev, A. Fitzler, B. Saha, K. Jessen, S. Heinze, A. Linnemann, J. Jolie, K. O. Zell et al. (18 more) Eur. Phys. J. A, 20 1 (2004) 173-178 Published online: 02 March 2004 DOI: 10.1140/epja/i2002-10347-6