@article{TRSPY_2010_269_a19,
     author = {Yu. N. Subbotin and S. A. Telyakovskii},
     title = {Sharpening of the estimates for relative widths of classes of differentiable functions},
     journal = {Informatics and Automation},
     pages = {242--253},
     publisher = {mathdoc},
     volume = {269},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_2010_269_a19/}
}