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GRAHAM, Alister W. Populating the galaxy velocity dispersion – supermassive black hole mass diagram: A catalogue of (Mbh, σ) values. Publications of the Astronomical Society of Australia. Novembre 2008, čís. 25#4, s. 167–175, table 1 page 174. Dostupné online. DOI10.1088/1009-9271/5/4/002. Bibcode2005ChJAA...5..347A.
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GRAHAM, Alister W. Populating the galaxy velocity dispersion – supermassive black hole mass diagram: A catalogue of (Mbh, σ) values. Publications of the Astronomical Society of Australia. Novembre 2008, čís. 25#4, s. 167–175, table 1 page 174. Dostupné online. DOI10.1088/1009-9271/5/4/002. Bibcode2005ChJAA...5..347A.
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