Panessa, F.; Bassani, L.; Cappi, M.; Dadina, M.; Barcons, X.; Carrera, F. J.; Ho, L. C.; Iwasawa, K. (31 July 2006). "On the X-ray, optical emission line and black hole mass properties of local Seyfert galaxies". Astronomy & Astrophysics. 455 (1): 173–185. arXiv:astro-ph/0605236. Bibcode:2006A&A...455..173P. doi:10.1051/0004-6361:20064894. S2CID5769000.
Panessa, F.; Bassani, L.; Cappi, M.; Dadina, M.; Barcons, X.; Carrera, F. J.; Ho, L. C.; Iwasawa, K. (31 July 2006). "On the X-ray, optical emission line and black hole mass properties of local Seyfert galaxies". Astronomy & Astrophysics. 455 (1): 173–185. arXiv:astro-ph/0605236. Bibcode:2006A&A...455..173P. doi:10.1051/0004-6361:20064894. S2CID5769000.
Panessa, F.; Bassani, L.; Cappi, M.; Dadina, M.; Barcons, X.; Carrera, F. J.; Ho, L. C.; Iwasawa, K. (31 July 2006). "On the X-ray, optical emission line and black hole mass properties of local Seyfert galaxies". Astronomy & Astrophysics. 455 (1): 173–185. arXiv:astro-ph/0605236. Bibcode:2006A&A...455..173P. doi:10.1051/0004-6361:20064894. S2CID5769000.
Panessa, F.; Bassani, L.; Cappi, M.; Dadina, M.; Barcons, X.; Carrera, F. J.; Ho, L. C.; Iwasawa, K. (31 July 2006). "On the X-ray, optical emission line and black hole mass properties of local Seyfert galaxies". Astronomy & Astrophysics. 455 (1): 173–185. arXiv:astro-ph/0605236. Bibcode:2006A&A...455..173P. doi:10.1051/0004-6361:20064894. S2CID5769000.