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Bobylev, V. V.; Bajkova, A. T. (2022). "Search for Close Stellar Encounters with the Solar System Based on Data from the Gaia DR3 Catalogue". Astronomy Letters48 (9): 542. doi:10.1134/S1063773722080011. Bibcode: 2022AstL...48..542B.
de la Fuente Marcos, Raúl; de la Fuente Marcos, Carlos (2022). "The Closest Past Flyby of a Known Star to the Solar System: HD 7977, UCAC4 237-008148 or WISE J072003.20-084651.2?". Research Notes of the American Astronomical Society6 (7): 152. doi:10.3847/2515-5172/ac842b. Bibcode: 2022RNAAS...6..152D.