Rotational bands in X.H. Zhou, M. Oshima, Y. Toh, Y.H. Zhang, Y. Zheng, M. Koizumi, A. Osa, T. Hayakawa, Y. Hatsukawa, T. Shizuma and M. Sugawara Eur. Phys. J. A, 15 3 (2002) 285-289 Published online: 19 November 2002 DOI: 10.1140/epja/i2002-10076-x