The mass of the black hole in RE J1034+396 B. Czerny, B. You, A. Kurcz, J. Średzińska, K. Hryniewicz, M. Nikołajuk, M. Krupa, J.-M. Wang, C. Hu and P. T. Życki A&A, 594 (2016) A102 Published online: 19 October 2016 DOI: 10.1051/0004-6361/201628103