Nearest neighbor spacing distribution of U(5) ↔ SO(6) transitional region H. Sabri, B. Rashidian Maleki, H. Fathi and M. A. Jafarizadeh Eur. Phys. J. Plus, 129 3 (2014) 52 Published online: 31 March 2014 DOI: 10.1140/epjp/i2014-14052-0