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Graham, Alister W. (November 2008), "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values", Publications of the Astronomical Society of Australia, 25 (4): 167–175, arXiv:0807.2549, Bibcode:2008PASA...25..167G, doi:10.1071/AS08013, S2CID89905.
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Graham, Alister W. (November 2008), "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values", Publications of the Astronomical Society of Australia, 25 (4): 167–175, arXiv:0807.2549, Bibcode:2008PASA...25..167G, doi:10.1071/AS08013, S2CID89905.
Deming, Drake; et al. (June 1973), "The Light Curve of Supernova 1971 I", Publications of the Astronomical Society of the Pacific, 85 (505): 321, Bibcode:1973PASP...85..321D, doi:10.1086/129462
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Bai, Yu; Zou, Hu; Liu, JiFeng; Wang, Song (September 2015). [ttpsh://doi.org/10.1088/0067-0049/220/1/6 "An Updated Ultraviolet Catalog of Galex Nearby Galaxies"]. The Astrophysical Journal Supplement Series. 220 (1): 6. arXiv:1508.07071. Bibcode:2015ApJS..220....6B. doi:10.1088/0067-0049/220/1/6. S2CID118402184. Retrieved 21 October 2021.
Graham, Alister W. (November 2008), "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values", Publications of the Astronomical Society of Australia, 25 (4): 167–175, arXiv:0807.2549, Bibcode:2008PASA...25..167G, doi:10.1071/AS08013, S2CID89905.