A unified NLO description of top-pair and associated Wt production F. Cascioli, S. Kallweit, P. Maierhöfer and S. Pozzorini Eur. Phys. J. C, 74 3 (2014) 2783 Published online: 04 March 2014 DOI: 10.1140/epjc/s10052-014-2783-9