by Motta, S.E., Rodriguez, J., Jourdain, E., Del Santo, M., Belanger, G., Cangemi, F., Grinberg, V., Kajava, J.J.E., Kuulkers, E., Malzac, J., Pottschmidt, K., Roques, J.P., Sánchez-Fernández, C., Wilms, J.
Published in New astronomy reviews (01.12.2021)

by Katsuda, Satoru, Takiwaki, Tomoya, Tominaga, Nozomu, Moriya, Takashi J., Nakamura, Ko
Published in The Astrophysical journal (20.08.2018)

by Kammoun, E., Papadakis, I. E., Dovčiak, M., Panagiotou, C.
Published in Astronomy and astrophysics (Berlin) (01.06.2024)

by Boller, Thomas
Published in Astronomische Nachrichten (01.06.2021)

by Trap, G., Goldwurm, A., Dodds-Eden, K., Weiss, A., Terrier, R., Ponti, G., Gillessen, S., Genzel, R., Ferrando, P., Bélanger, G., Clénet, Y., Rouan, D., Predehl, P., Capelli, R., Melia, F., Yusef-Zadeh, F.
Published in Astronomy and astrophysics (Berlin) (01.04.2011)

by Fabian, A. C., Ballantyne, D. R., Merloni, A., Vaughan, S., Iwasawa, K., Boller, Th
Published in Monthly notices of the Royal Astronomical Society (11.04.2002)

by Lehmer, B. D, Brandt, W. N, Alexander, D. M, Bell, E. F, McIntosh, D. H, Bauer, F. E, Hasinger, G, Mainieri, V, Miyaji, T, Schneider, D. P, Steffen, A. T
Published in The Astrophysical journal (10.03.2007)

by Nayakshin, Sergei, Kazanas, Demosthenes, Kallman, Timothy R
Published in The Astrophysical journal (10.07.2000)

by Butler, N. R
Published in The Astrophysical journal (20.02.2007)

by Salzmann, David, Takabe, Hideaki, Wang, Feilu, Zhao, Gang
Published in The Astrophysical journal (20.11.2011)

by Nahar, Sultana N, Pradhan, Anil K, Zhang, Hong Lin
Published in The Astrophysical journal. Supplement series (01.11.2000)

by Horns, D., Hoffmann, A. I. D., Santangelo, A., Aharonian, F. A., Rowell, G. P.
Published in Astronomy and astrophysics (Berlin) (01.07.2007)

by Czerny, B., Chevallier, L., Gonçalves, A. C., Różańska, A., Dumont, A.-M.
Published in Astronomy and astrophysics (Berlin) (01.05.2009)

by Ballantyne, D. R., Fabian, A. C., Ross, R. R.
Published in Monthly notices of the Royal Astronomical Society (01.02.2002)

by Barcons, X., Mateos, S., Ceballos, M. T.
Published in Monthly notices of the Royal Astronomical Society (21.07.2000)

by Gonçalves, A. C., Collin, S., Dumont, A.-M., Chevallier, L.
Published in Astronomy and astrophysics (Berlin) (01.04.2007)

by Horns, D., Hoffmann, A. I. D., Santangelo, A., Aharonian, F. A., Rowell, G. P.
Published in Astronomy and astrophysics (Berlin) (01.07.2007)

by Ballantyne, D. R, Turner, N. J, Young, A. J
Published in The Astrophysical journal (01.02.2005)

by Gonçalves, A. C., Collin, S., Dumont, A.-M., Chevallier, L.
Published in Astronomy and astrophysics (Berlin) (01.04.2007)

by Boughn, Stephen P
Published in The Astrophysical journal (01.06.1998)