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O. N. Biryukov, “Coding knots by $T$-graphs”, CMFD, 66:4 (2020), 531–543
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O. N. Biryukov, “Closed-Form Expression for the Braid Entropy in the Group $B_3$”, Mat. Zametki, 97:4 (2015), 629–631; Math. Notes, 97:4 (2015), 641–643
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O. N. Biryukov, “A bound for the topological entropy of homeomorphisms of a punctured two-dimensional disk”, Fundam. Prikl. Mat., 11:5 (2005), 47–55; J. Math. Sci., 146:1 (2007), 5483–5489