The GRAVITY Collaboration,
R. Abuter,
A. Amorim,
M. Bauböck,
J. P. Berger,
H. Bonnet,
W. Brandner,
Y. Clénet,
V. Coudé du Foresto,
P. T. de Zeeuw et al. (45 more)
A&A, 625 (2019) L10
Published online: 20 May 2019
DOI: 10.1051/0004-6361/201935656
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