GRAVITY Collaboration,
R. Abuter,
M. Accardo,
A. Amorim,
N. Anugu,
G. Ávila,
N. Azouaoui,
M. Benisty,
J. P. Berger,
N. Blind et al. (124 more)
A&A, 602 (2017) A94
Published online: 21 June 2017
DOI: 10.1051/0004-6361/201730838
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