@article{IIGUM_2024_49_a5,
     author = {V. A. Klyachin},
     title = {Estimates for piecewise linear approximation of derivative functions of {Sobolev} classes},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {78--89},
     publisher = {mathdoc},
     volume = {49},
     year = {2024},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2024_49_a5/}
}