Breaking of the SU(4) limit for the Gamow-Teller strength in N ∼ Z nuclei I. Petermann, G. Martınez-Pinedo, K. Langanke and E. Caurier Eur. Phys. J. A, 34 3 (2007) 319-324 Published online: 03 December 2007 DOI: 10.1140/epja/i2007-10502-7