Yrast transition strengths in Ba G.S. Li, Z.Y. Dai, X.A. Liu, L.K. Zhang, S.X. Wen, G.J. Yuan, X.G. Wu, P.K. Weng, S.G. Li and C.X. Yang Eur. Phys. J. A, 1 4 (1998) 379-382 Published online: 15 April 1998 DOI: 10.1007/s100500050072