Atkinson, J.W. (2005). «Supermassive black hole mass measurements for NGC 1300 and NGC 2748 based on HST emission-line gas kinematics». Monthly Notices of the Royal Astronomical Society359 (2): 504–520. doi:10.1111/j.1365-2966.2005.08904.x. Bibcode: 2005MNRAS.359..504A.
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 Australia25 (4): 167–175. doi:10.1071/AS08013. Bibcode: 2008PASA...25..167G.
Atkinson, J. W. (2005). «Supermassive black hole mass measurements for NGC 1300 and NGC 2748 based on HST emission-line gas kinematics». Monthly Notices of the Royal Astronomical Society359: 504–520. doi:10.1111/j.1365-2966.2005.08904.x.
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Atkinson, J.W. (2005). «Supermassive black hole mass measurements for NGC 1300 and NGC 2748 based on HST emission-line gas kinematics». Monthly Notices of the Royal Astronomical Society359 (2): 504–520. doi:10.1111/j.1365-2966.2005.08904.x. Bibcode: 2005MNRAS.359..504A.
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 Australia25 (4): 167–175. doi:10.1071/AS08013. Bibcode: 2008PASA...25..167G.