Inert doublet dark matter with an additional scalar singlet and 125 GeV Higgs boson Amit Dutta Banik and Debasish Majumdar Eur. Phys. J. C, 74 11 (2014) 3142 Published online: 11 November 2014 DOI: 10.1140/epjc/s10052-014-3142-6