GRAVITY Collaboration,
A. Amorim,
M. Bauböck,
W. Brandner,
M. Bolzer,
Y. Clénet,
R. Davies,
P. T. de Zeeuw,
J. Dexter,
A. Drescher et al. (40 more)
A&A, 648 (2021) A117
Published online: 28 April 2021
DOI: 10.1051/0004-6361/202040061
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