@article{IVM_1976_10_a20,
     author = {V. V. Tikhomirov},
     title = {The approximation of functions with a~given rate of convergence},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {113--115},
     year = {1976},
     number = {10},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1976_10_a20/}
}