The hMSSM approach for Higgs self-couplings revisited Stefan Liebler, Margarete Mühlleitner, Michael Spira and Maximilian Stadelmaier Eur. Phys. J. C, 79 1 (2019) 65 Published online: 28 January 2019 DOI: 10.1140/epjc/s10052-019-6594-x