Electroweak corrections to top-quark pair productionin quark-antiquark annihilation J. H. Kühn, A. Scharf and P. Uwer Eur. Phys. J. C, 45 1 (2006) 139-150 Published online: 15 January 2006 DOI: 10.1140/epjc/s2005-02423-6