Higgs characterisation at NLO in QCD: CP properties of the top-quark Yukawa interactionFederico Demartin, Fabio Maltoni, Kentarou Mawatari, Ben Page and Marco ZaroEur. Phys. J. C, 74 9 (2014) 3065DOI: https://doi.org/10.1140/epjc/s10052-014-3065-2