T. Hromakina,
I. Belskaya,
Yu. Krugly,
V. Rumyantsev,
O. Golubov,
I. Kyrylenko,
O. Ivanova,
S. Velichko,
I. Izvekova,
A. Sergeyev et al. (2 more)
A&A, 647 (2021) A71
Published online: 10 March 2021
DOI: 10.1051/0004-6361/202039737
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