Shevchenko, Ivan I. (2020). "Multiplanet Systems of Single Stars". Dynamical Chaos in Planetary Systems. Astrophysics and Space Science Library. Vol. 463. pp. 291–303. doi:10.1007/978-3-030-52144-8_13. ISBN978-3-030-52143-1.
Zacharias, N.; Finch, C. T.; Girard, T. M.; Henden, A.; Bartlett, J. L.; Monet, D. G.; Zacharias, M. I. (2012). "VizieR Online Data Catalog: UCAC4 Catalogue (Zacharias+, 2012)". Vizier Online Data Catalog. Bibcode:2012yCat.1322....0Z.