HR 6819 - a post-interaction binary system originally thought to be a triple system containing a black hole - Frost, A. J. et al - published in Massive Stars Near and Far, Edited by J. Mackey, J.S. Vink and N. St-Louis. Proceedings of the International Astronomical Union, held 8-13 May 2022 in Ballyconnell, Ireland. Cambridge University Press, 2024, 361, pp. 307-310 (2024) - SCART-2025-0082