Amaro-Seoane, Pau Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
1412.5592.pdf (Preprint), 258KB
Chen, X., & Amaro-Seoane, P. (submitted). Sagittarius A* Rivaled the Sun in the Ancient X-ray Sky.