@article{TM_1987_180_a87,
     author = {V. V. Lipovik},
     title = {On estimates of strong approximation of functions by {Fourier--\v{C}eby\v{s}ev} sums},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {149--151},
     publisher = {mathdoc},
     volume = {180},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1987_180_a87/}
}