TY  - JOUR
AU  - P. A. Andrianov
AU  - O. L. Vinogradov
TI  - On the Constant and Step in Jackson's Inequality for Best Approximations by Trigonometric Polynomials and by Haar Polynomials
JO  - Matematičeskie zametki
PY  - 2016
SP  - 323
EP  - 330
VL  - 100
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2016_100_3_a0/
LA  - ru
ID  - MZM_2016_100_3_a0
ER  -