Links
Literatur
- Genzel, Eisenhauer und Gillessen: he Galactic Center massive black hole and nuclear star cluster. Rev. Mod. Phys. (2010), 82, 3121
- Eckart et al.: The Milky Way's Supermassive Black Hole: How good a case is it? A Challenge for Astrophysics & Philosophy of Science. Foundations of Physics (2017), 47, 553, (astro-ph-Preprint)