CP violation in the general two-Higgs-doublet model: a geometric view M. Maniatis, A. von Manteuffel and O. Nachtmann Eur. Phys. J. C, 57 4 (2008) 719-738 Published online: 12 September 2008 DOI: 10.1140/epjc/s10052-008-0712-5