Monitoring dusty sources in the vicinity of Sagittarius A*F. Peißker, S. E. Hosseini, M. Zajaček, A. Eckart, R. Saalfeld, M. Valencia-S., M. Parsa and V. KarasA&A, 634 (2020) A35DOI: https://doi.org/10.1051/0004-6361/201935953
