X-ray and Radio Variability of M31*, The Andromeda Galaxy Nuclear Supermassive Black HoleDOI: info:10.1088/0004-637X/710/1/755v. 710755–763
Garcia, Michael R., Hextall, Richard, Baganoff, Frederick K., Galache, Jose, Melia, Fulvio, Murray, Stephen S., Primini, Francis A., Sjouwerman, Loránt O., and Williams, Ben. 2010. "X-ray and Radio Variability of M31*, The Andromeda Galaxy Nuclear Supermassive Black Hole." The Astrophysical Journal, 710 755–763. https://doi.org/10.1088/0004-637X/710/1/755.