Ponti, Gabriele High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;
Stel, G., Ponti, G., & Haardt, F. (2023). Iron Kα echoes from the circumnuclear disk orbiting Sgr A. Astronomy and Astrophysics, 679: A44. doi:10.1051/0004-6361/202347184.