Shape evolution for Sm isotopes in relativistic mean-field theory J. Meng, W. Zhang, S. G. Zhou, H. Toki and L. S. Geng Eur. Phys. J. A, 25 1 (2005) 23-27 Published online: 20 June 2005 DOI: 10.1140/epja/i2005-10066-6