Eckart, Andreas Max Planck Institute for Radio Astronomy, Max Planck Society;
Zajaček, M., Araudo, A., Karas, V., Czerny, B., Eckart, A., Suková, P., et al. (2020). Missing bright red giants in the Galactic center: A fingerprint of its once active state? arXiv e-prints, arXiv:2011.12868, pp. arXiv:2011.12868.