Admiralova, A.N. and Beniash-Kryvets, V.V. (2019) “On representation varie ties of some HNN-extensions of free groups”, Journal of the Belarusian State University. Mathematics and Informatics, (2), pp. 10–16. Available at: https://journals.bsu.by/index.php/mathematics/article/view/779 (Accessed: 18 July 2026).