Comparing the birth rate of stellar black holes in binary black hole mergers and long gamma-ray burstsJ.-L. Atteia, J.-P. Dezalay, O. Godet, A. Klotz, D. Turpin and M. G. BernardiniA&A, 610 (2018) A58DOI: https://doi.org/10.1051/0004-6361/201731875