For citations:

Tikhonov A.A. Pafnutiy Lvovich Chebyshev (1821-1894), a man of science in the service of Russia (On the occasion of the bicentennial of his birth). Chebyshevskii Sbornik. 2021;22(3):405-422. (In Russ.) https://doi.org/10.22405/2226-8383-2021-22-3-405-422