Common-envelope ejection in massive binary stars - Implications for the progenitors of GW150914 and GW151226M. U. Kruckow, T. M. Tauris, N. Langer, D. Szécsi, P. Marchant and Ph. PodsiadlowskiA&A, 596 (2016) A58DOI: https://doi.org/10.1051/0004-6361/201629420