GRAVITY Collaboration,
G. Rodríguez-Coira,
T. Paumard,
G. Perrin,
F. Vincent,
R. Abuter,
A. Amorim,
M. Bauböck,
J. P. Berger,
H. Bonnet et al. (48 more)
A&A, 651 (2021) A37
Published online: 08 July 2021
DOI: 10.1051/0004-6361/202039501
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