Determining the stau trilinear coupling in supersymmetric Higgs decays S. Y. Choi, H.-U. Martyn and P. M. Zerwas Eur. Phys. J. C, 44 2 (2005) 175-182 Published online: 15 October 2005 DOI: 10.1140/epjc/s2005-02371-1