A. Tokovinin, M. Petr-Gotzens, and C. Briceno. (2020)cite arxiv:2010.08543Comment: Accepted for publicaion in The Astronomical Journal. 19 pages, 22 figures, 7 tables.
V. Makarov. (2020)cite arxiv:2010.03628Comment: Accepted in the Astronomical Journal. Table 1 with Hipparcos and Gaia DR2 data for 1295 pairs is available online.