@article{MZM_1968_4_3_a4,
     author = {S. A. Telyakovskii},
     title = {Approximation of differentiable functions by partial sums of their {Fourier} series},
     journal = {Matemati\v{c}eskie zametki},
     pages = {291--300},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1968_4_3_a4/}
}