For citations:
Bashmakova M.G., Salikhov V.Kh. On irrationality measure $\arctg\frac{1}{2}$. Chebyshevskii Sbornik. 2019;20(4):58-68. (In Russ.) https://doi.org/10.22405/2226-8383-2019-20-4-58-68
Bashmakova M.G., Salikhov V.Kh. On irrationality measure $\arctg\frac{1}{2}$. Chebyshevskii Sbornik. 2019;20(4):58-68. (In Russ.) https://doi.org/10.22405/2226-8383-2019-20-4-58-68