Black holes in active galactic nuclei

VALTONEN, M.J., MIKKOLA, S., MERRITT, D., GOPAKUMAR, A., LEHTO, H.J., HYVÖNEN, L. T., RAMPADARATH, H., SAUNDERS, R., BAŠTA, Milan, HUDEC, R. Black holes in active galactic nuclei. In: KLIONER, S.A., ed. Relativity in Fundamental Astronomy: Dynamics, Reference Frames, and Data Analysis. Cambridge: Cambridge University Press, 2010, s. 260-268. IAU Symposium Proceedings Series, IAU S261. ISBN 978-0-521-76481-0. ISSN 1743-9213. Available: doi: 10.1017/S1743921309990482.