00583naa#a2200169#i#450# EN\\bibl\3208 20241123042528.6 2308-8877 20140617b2014####ek#y0engy0150####ca RUS RU Approximation of the smooth functions by chebyshev’s polynomials and its application Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2014 3 с. Journal article local Gorlov V. zh-szf.ru