S.Y. Van Der Werf, J.M. Schippers, N. Blasi, G.T. Emery, M.N. Harakeh, C.W. De Jager, M. Waroquier Physical Review C 36 (5), 1796-18061987A1Published while none of the authors were employed at the CMMDOI http://dx.doi.org/10.1103/PhysRevC.36.1796