Luis C. Ho, Alexei V. Filippenko, Wallace L. W. Sargent: A Search for “Dwarf” Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies. In: The Astrophysical Journal Supplement Series. Band112, Nr.2, Oktober 1997, ISSN0067-0049, S.315–390, doi:10.1086/313041 (iop.org).
X. Y. Dong, M. M. De Robertis: Low-Luminosity Active Galaxies and Their Central Black Holes. In: The Astronomical Journal. Band131, Nr.3, März 2006, ISSN0004-6256, S.1236–1252, doi:10.1086/499334 (iop.org).
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Luis C. Ho, Alexei V. Filippenko, Wallace L. W. Sargent: A Search for “Dwarf” Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies. In: The Astrophysical Journal Supplement Series. Band112, Nr.2, Oktober 1997, ISSN0067-0049, S.315–390, doi:10.1086/313041 (iop.org).
X. Y. Dong, M. M. De Robertis: Low-Luminosity Active Galaxies and Their Central Black Holes. In: The Astronomical Journal. Band131, Nr.3, März 2006, ISSN0004-6256, S.1236–1252, doi:10.1086/499334 (iop.org).
Luis C. Ho, Alexei V. Filippenko, Wallace L. W. Sargent: A Search for “Dwarf” Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies. In: The Astrophysical Journal Supplement Series. Band112, Nr.2, Oktober 1997, ISSN0067-0049, S.315–390, doi:10.1086/313041 (iop.org).
X. Y. Dong, M. M. De Robertis: Low-Luminosity Active Galaxies and Their Central Black Holes. In: The Astronomical Journal. Band131, Nr.3, März 2006, ISSN0004-6256, S.1236–1252, doi:10.1086/499334 (iop.org).