For citations:

Demidov S.S. Andrei Nikolayevich Kolmogorov on the cusp of national history in the 50-s – 60-s. Chebyshevskii Sbornik. 2023;24(4):5-11. (In Russ.) https://doi.org/10.22405/2226-8383-2023-24-4-5-11