Mass of the active galactic nucleus black hole XMMUJ134736.6+173403K. Goluchová, G. Török, E. Šrámková, M. A. Abramowicz, Z. Stuchlík and J. HorákA&A, 622 (2019) L8DOI: https://doi.org/10.1051/0004-6361/201834774
