For citations:

Salikhov V.Kh., Zolotukhina E.S., Tomashevskaya E.B. On irrationality measure of $\ln{\frac{5}{3}}$. Chebyshevskii Sbornik. 2019;20(4):330-338. (In Russ.) https://doi.org/10.22405/2226-8383-2019-20-4-330-338