Psaltis, D. Max Planck Institute for Radio Astronomy, Max Planck Society;
Wex, N. Max Planck Institute for Radio Astronomy, Max Planck Society;
Kramer, Max Planck Institute for Radio Astronomy, Max Planck Society;
Psaltis, D., Wex, N., & Kramer (2016). A Quantitative Test of the No-hair Theorem with Sgr A* Using Stars, Pulsars, and the Event Horizon Telescope. Astrophysical Journal, 818: 121, pp. 121. doi:10.3847/0004-637X/818/2/121.