Stability and symmetry breaking in the general two-Higgs-doublet model M. Maniatis, A. von Manteuffel, O. Nachtmann and F. Nagel Eur. Phys. J. C, 48 3 (2006) 805-823 Published online: 24 October 2006 DOI: 10.1140/epjc/s10052-006-0016-6