For citations:

Gallamov M.M. Chain fraction [0; 𝑎1, 1, 𝑎3, ..., 𝑎𝑛] and its stepwise approximation. Chebyshevskii Sbornik. 2025;26(4):257-270. (In Russ.) https://doi.org/10.22405/2226-8383-2025-26-4-257-270